What's the difference between break and shear?

Break


Definition:

  • (v. i.) To fall in business; to become bankrupt.
  • (v. t.) To strain apart; to sever by fracture; to divide with violence; as, to break a rope or chain; to break a seal; to break an axle; to break rocks or coal; to break a lock.
  • (v. t.) To lay open as by breaking; to divide; as, to break a package of goods.
  • (v. t.) To lay open, as a purpose; to disclose, divulge, or communicate.
  • (v. t.) To infringe or violate, as an obligation, law, or promise.
  • (v. t.) To interrupt; to destroy the continuity of; to dissolve or terminate; as, to break silence; to break one's sleep; to break one's journey.
  • (v. t.) To destroy the completeness of; to remove a part from; as, to break a set.
  • (v. t.) To destroy the arrangement of; to throw into disorder; to pierce; as, the cavalry were not able to break the British squares.
  • (v. t.) To shatter to pieces; to reduce to fragments.
  • (v. t.) To exchange for other money or currency of smaller denomination; as, to break a five dollar bill.
  • (v. t.) To destroy the strength, firmness, or consistency of; as, to break flax.
  • (v. t.) To weaken or impair, as health, spirit, or mind.
  • (v. t.) To diminish the force of; to lessen the shock of, as a fall or blow.
  • (v. t.) To impart, as news or information; to broach; -- with to, and often with a modified word implying some reserve; as, to break the news gently to the widow; to break a purpose cautiously to a friend.
  • (v. t.) To tame; to reduce to subjection; to make tractable; to discipline; as, to break a horse to the harness or saddle.
  • (v. t.) To destroy the financial credit of; to make bankrupt; to ruin.
  • (v. t.) To destroy the official character and standing of; to cashier; to dismiss.
  • (v. i.) To come apart or divide into two or more pieces, usually with suddenness and violence; to part; to burst asunder.
  • (v. i.) To open spontaneously, or by pressure from within, as a bubble, a tumor, a seed vessel, a bag.
  • (v. i.) To burst forth; to make its way; to come to view; to appear; to dawn.
  • (v. i.) To burst forth violently, as a storm.
  • (v. i.) To open up; to be scattered; to be dissipated; as, the clouds are breaking.
  • (v. i.) To become weakened in constitution or faculties; to lose health or strength.
  • (v. i.) To be crushed, or overwhelmed with sorrow or grief; as, my heart is breaking.
  • (v. i.) To make an abrupt or sudden change; to change the gait; as, to break into a run or gallop.
  • (v. i.) To fail in musical quality; as, a singer's voice breaks when it is strained beyond its compass and a tone or note is not completed, but degenerates into an unmusical sound instead. Also, to change in tone, as a boy's voice at puberty.
  • (v. i.) To fall out; to terminate friendship.
  • (v. t.) An opening made by fracture or disruption.
  • (v. t.) An interruption of continuity; change of direction; as, a break in a wall; a break in the deck of a ship.
  • (v. t.) A projection or recess from the face of a building.
  • (v. t.) An opening or displacement in the circuit, interrupting the electrical current.
  • (v. t.) An interruption; a pause; as, a break in friendship; a break in the conversation.
  • (v. t.) An interruption in continuity in writing or printing, as where there is an omission, an unfilled line, etc.
  • (v. t.) The first appearing, as of light in the morning; the dawn; as, the break of day; the break of dawn.
  • (v. t.) A large four-wheeled carriage, having a straight body and calash top, with the driver's seat in front and the footman's behind.
  • (v. t.) A device for checking motion, or for measuring friction. See Brake, n. 9 & 10.
  • (n.) See Commutator.

Example Sentences:

  • (1) Lucy and Ed will combine coverage of hard and breaking news with a commitment to investigative journalism, which their track record so clearly demonstrates”.
  • (2) They spend about 4.3 minutes of each working hour on a smoking break, the study shows.
  • (3) The mechanism by which pertussis toxin (PT) breaks the unresponsiveness of delayed-type hypersensitivity (DTH) to sheep red blood cells (SRBC) was examined in B10 mice.
  • (4) After absorption of labeled glucose, two pools of trehalose are found in dormant spores, one of which is extractable without breaking the spores, and the other, only after the spores are disintegrated.
  • (5) The following possible explanations were discussed: a) the tested psychotropic drugs block prostaglandin receptors in the stomach; b) the test substances react with prostaglandin in the nutritive solution; c) the substances stimulate metabolic processes in the stomach wall that break down prostaglandin.
  • (6) The ability of ligand to stimulate its own synthesis and that of its receptor suggests the presence of an autocrine positive feedback loop, however we were unable to break this loop in the breast cancer cells by antibodies that blocked the interaction of TGF alpha with the EGF receptor.
  • (7) Neutral sucrose density sedimentation patterns indicate that neutron-induced double strand-breaks sometimes occur in clusters of more than 100 in the same phage and that the effeciency with which double strand-breaks form is about 50 times that of gamma-induced double strand-breaks.
  • (8) Possible explanations of the clinical gains include 1) psychological encouragement, 2) improvements of mechanical efficiency, 3) restoration of cardiovascular fitness, thus breaking a vicous circle of dyspnoea, inactivity and worsening dyspnoea, 4) strengthening of the body musculature, thus reducing the proportion of anaerobic work, 5) biochemical adaptations reducing glycolysis in the active tissues, and 6) indirect responses to such factors as group support, with advice on smoking habits, breathing patterns and bronchial hygiene.
  • (9) At high luminances, the temporal, but not spatial, properties of this mechanism break down in a manner which had not been studied.Low-frequency inhibitory processThis process is manifest as a decrease in sensitivity from that of the simple excitatory process.
  • (10) These experiments represent the first occasion that the sequence specificity of a DNA damaging agent, which causes only double-strand breaks, has been determined to the exact base-pair in intact cells.
  • (11) The OPL first appears as a thin, discontinuous break in the cytoblast layer that is frequently interrupted by the profiles of migrating neuro- and glioblasts.
  • (12) Celebrity woodlanders Tax breaks and tree-hugging already draw the wealthy and well-known to buy British forests.
  • (13) But we need politicians to break out of historical routines.
  • (14) For Burroughs, who had been publishing ground-breaking books for 20 years without much appreciable financial return, it was association with fame and the music industry, as well as the possible benefits: a wider readership, film hook-ups and more money.
  • (15) Once you've invested many years in a career, figuring out how to take time out and then return to a role that's comparable to the one you left (or as comparable as you want it to be) requires more than confidence and enthusiasm - employers need to actively acknowledge the benefits of such breaks and be more receptive to those seeking to return”.
  • (16) A dose-dependent increase in chromatid lesions, i.e., achromatic lesions, chromatid breaks, chromatid deletions and triradial or quandriradial chromosomal exchange fiqures, was found.
  • (17) From the stress-strain curve the following values were selected: strain, stress, and slope at 80 mmHg equivalent pressure (1 mmHg = 133.3 Pa); maximum stress, strain, and slope; and breaking stress, strain, and slope if the sample broke.
  • (18) Everyone worked hard, but it is fair to pick out Willian because of his work-rate, quality on the ball, participation in the first goal and quality of the second.” It had been Willian’s fizzed cross, 11 minutes before the break, which Dragovic had nodded inadvertently inside Shovkovskiy’s near post to earn the hosts their initial lead.
  • (19) The possibility that mammalian DNA topoisomerase II is an intracellular target which mediates drug-induced DNA breaks is supported by the following studies using 4'-(9-acridinylamino)methane-sulfon-m-anisidide (m-AMSA): (a) a single m-AMSA-dependent DNA cleavage activity copurified with calf thymus DNA topoisomerase II activity at all chromatographic steps of the enzyme purification; (b) m-AMSA-induced DNA cleavage by this purified activity resulted in the covalent attachment of protein to the 5'-ends of the DNA via a tyrosyl phosphate bond.
  • (20) The authorities had said they used water cannon, teargas and smoke grenades to break up the protest.

Shear


Definition:

  • (v. t.) To cut, clip, or sever anything from with shears or a like instrument; as, to shear sheep; to shear cloth.
  • (v. t.) To separate or sever with shears or a similar instrument; to cut off; to clip (something) from a surface; as, to shear a fleece.
  • (v. t.) To reap, as grain.
  • (v. t.) Fig.: To deprive of property; to fleece.
  • (v. t.) To produce a change of shape in by a shear. See Shear, n., 4.
  • (v. t.) A pair of shears; -- now always used in the plural, but formerly also in the singular. See Shears.
  • (v. t.) A shearing; -- used in designating the age of sheep.
  • (v. t.) An action, resulting from applied forces, which tends to cause two contiguous parts of a body to slide relatively to each other in a direction parallel to their plane of contact; -- also called shearing stress, and tangential stress.
  • (v. t.) A strain, or change of shape, of an elastic body, consisting of an extension in one direction, an equal compression in a perpendicular direction, with an unchanged magnitude in the third direction.
  • (v. i.) To deviate. See Sheer.
  • (v. i.) To become more or less completely divided, as a body under the action of forces, by the sliding of two contiguous parts relatively to each other in a direction parallel to their plane of contact.

Example Sentences:

  • (1) The sticking probability decreased as the cell receptor concentration was lowered from approximately 10(4) to 10(2) receptors per 4-microns diam liposome and as the shear rate increased from 5 to 22 s-1.
  • (2) Gonococcal outer membranes were purified by differential ultracentrifugation of sheared organisms treated with EDTA.
  • (3) This movement generates forward and backward shearing force in the stagnation region as the separated flow migrates back and forth.
  • (4) This model characterized the abnormal flow by a weak fluctuation of wall shear stress at the site adjacent to the vessel wall.
  • (5) The hemolytic characteristics of 14 different polydimethyl-siloxane materials were studied, using a rotating disk device to shear whole human blood for 6000 sec.
  • (6) Since the antithrombin action of heparin fails to interrupt arterial thrombosis, a mediating role for thrombin (EC 3.4.21.5) in the formation of high-shear platelet-dependent thrombus has been unproven.
  • (7) A propensity for elevated shear in the deep cartilage layer near the contact periphery, observed in nearly all computed stress distributions, is consistent with previous experimental findings of fissuring at that level in the impulsively loaded rabbit knee.
  • (8) The development of a shear transducer, small enough to be worn comfortably under a normal foot, is described, along with a microcomputer controlled data logger.
  • (9) In an emergency, the devices use multiple mechanisms – including clamps and shears – to try to choke off the oil flowing up from a pipe and disconnect the rig from the well.
  • (10) Cement was pressurized into the cavity of the anatomic specimens, and the maximum interface shear strength between the cement plug and the bone was experimentally determined for each revision.
  • (11) At the divider side walls, wall shear stresses are relatively high and approximately follow the flow rate distribution in time.
  • (12) Platelet adhesion onto subendothelium of a damaged blood vessel depends upon the presence of von Willebrand factor (vWf) only at high flow shear rate.
  • (13) Shear stress and first normal stress difference are measured as a function of shear gradient to calculate the apparent shear viscosity eta 1 and the apparent normal viscosity psi 7 as well as an apparent shear modulus G'.
  • (14) The accepted cause of this shear rate-dependent and time-dependent behavior is the progressive breakdown of rouleaux into individual red cells.
  • (15) The mean length of a population of microtubules containing GMPPCP increased only by 37% over a 150 min time period after shearing.
  • (16) By studying the kinetics of urease-catalyzed urea hydrolysis during application of hydrodynamic shear under varying chemical environments, we demonstrate that micromolar quantities of metal ions, in this case adventitious Fe, can accelerate the oxidation of thiol groups on urease and thus inactivate it when the protein is subjected to a shearing stress of order 1.0 Pa.
  • (17) The viscosity of these materials were measured by using the Ishida-Giken cone and plate high shear rheometer.
  • (18) The primate skull physical model data and the critical shear strain associated with the threshold for severe diffuse axonal injury were used to scale data obtained from previous studies to man, and thus derive a diffuse axonal injury tolerance for rotational acceleration for humans.
  • (19) Flagellar filaments were isolated from either culture fluid or concentrated cell suspensions that were subjected to shearing.
  • (20) Hemodilution seems particularly promising under hemodynamic condition of low shear stresses in vivo.