What's the difference between shear and spear?

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.

Spear


Definition:

  • (n.) A long, pointed weapon, used in war and hunting, by thrusting or throwing; a weapon with a long shaft and a sharp head or blade; a lance.
  • (n.) Fig.: A spearman.
  • (n.) A sharp-pointed instrument with barbs, used for stabbing fish and other animals.
  • (n.) A shoot, as of grass; a spire.
  • (n.) The feather of a horse. See Feather, n., 4.
  • (n.) The rod to which the bucket, or plunger, of a pump is attached; a pump rod.
  • (v. t.) To pierce with a spear; to kill with a spear; as, to spear a fish.
  • (v. i.) To shoot into a long stem, as some plants. See Spire.

Example Sentences:

  • (1) The work, The Spear, by Brett Murray, unleashed a brouhaha that has hogged headlines for more than a week in South Africa and earned that inexhaustible accolade "painting-gate".
  • (2) To find out if any stone tips were being used on spears any earlier than that, Wilkins examined sharp stones found at a site called Kathu Pan, in the Northern Cape region of South Africa.
  • (3) If they refuse to do so, make the least show of resistance, or attempt to run away from you, you will fire upon and compell [sic] them to surrender, breaking and destroying the Spears, Clubs, and Waddies of all those you take prisoner.
  • (4) will.i.am feat britney spears - Scream & Shout on MUZU.TV .
  • (5) The spear-phishing tricks we saw the Chinese secret police using against the Dalai Lama in 2008 were being used by Russian crooks to steal money from US companies by 2010.
  • (6) The wealth magazine Spear’s noted, in an interview with a company that provides contract cleaners to the Dorchester, that a cleaner at the Park Lane hotel would have to work for 56 hours to be able to take an entry-level room for the night , before tax.
  • (7) Manipulation of intra abdominal embedded spears may require unusual surgical procedures, and no attempt to extract the weapon should be made before emergency laparotomy is carried out.
  • (8) López and Machado were defeated by Capriles in opposition primaries, but they rejected Capriles's willingness to enter into dialogue with Maduro on public safety following the murder in January of Mónica Spear, a former Miss Venezuela .
  • (9) Hemicellulose B and holocellulose from spear grass (Heteropogon contortus) were the best sources of carbon, and the optimum temperature was 27 degrees.
  • (10) Spears joked that she was “thrilled” at being added to the dating app.
  • (11) To evaluate these hypotheses, the nucleotide sequence of the mitochondrial cytochrome oxidase subunit II gene was determined from a bushbaby (Galago senegalensis), flying lemur (Cynocephalus variegatus), tree shrew (Tupaia glis), spear-nosed bat (Phyllostomus hastatus), rousette bat (Rousettus leschenaulti), and nine-banded armadillo (Dasypus novemcinctus) and was compared with published sequences of a human, cow, and mouse.
  • (12) Jesus' death was ensured by the thrust of a soldier's spear into his side.
  • (13) What an incredible contrast between the passionate compassion so emotively expressed in Britain and the ruthless bloodlust in Japan, where tens of thousands of dolphins are killed with spears on beaches every year and where crowds cheer the departure of a huge mechanised fleet whose objective is the mass slaughter of these majestic mammals in the Antarctic whale sanctuary.
  • (14) Spectra were obtained with synchrotron radiation from the SPEAR storage ring using highly sensitive fluorescence detectors.
  • (15) Twenty four hours of food and maternal deprivation, shown previously to increase brain serotonin and 5-hydroxyindole acetic acid and their ratio in neonates (L. P. Spear & F. M. Scalzo, 1984, Developmental Brain Research, in press) was observed to induce tail flick analgesia, an effect blocked by metergoline.
  • (16) Adult male hunters who used dogs and carried only one spear were injured most frequently.
  • (17) I try not to read my reviews, but there's always some friend who'll come along and, under the guise of trying to comfort you, let you know that you've been speared.
  • (18) This tusk specimen contains a metal spear with a wooden component, which is surrounded by a quiver-like osseous encasement.
  • (19) Facebook Twitter Pinterest Armed with a makeshift spear, an Assam man sets out to chase away the elephant that crushed a woman to death in the village of Galighat.
  • (20) By the 16th century the conduction of sound by a rod or the staff of a spear was reported by a number of writers; however, these writers considered these phenomena as a curiosity rather than having practical value.