What's the difference between block and sheave?

Block


Definition:

  • (v. t.) A piece of wood more or less bulky; a solid mass of wood, stone, etc., usually with one or more plane, or approximately plane, faces; as, a block on which a butcher chops his meat; a block by which to mount a horse; children's playing blocks, etc.
  • (v. t.) The solid piece of wood on which condemned persons lay their necks when they are beheaded.
  • (v. t.) The wooden mold on which hats, bonnets, etc., are shaped.
  • (v. t.) The pattern or shape of a hat.
  • (v. t.) A large or long building divided into separate houses or shops, or a number of houses or shops built in contact with each other so as to form one building; a row of houses or shops.
  • (v. t.) A square, or portion of a city inclosed by streets, whether occupied by buildings or not.
  • (v. t.) A grooved pulley or sheave incased in a frame or shell which is provided with a hook, eye, or strap, by which it may be attached to an object. It is used to change the direction of motion, as in raising a heavy object that can not be conveniently reached, and also, when two or more such sheaves are compounded, to change the rate of motion, or to exert increased force; -- used especially in the rigging of ships, and in tackles.
  • (v. t.) The perch on which a bird of prey is kept.
  • (v. t.) Any obstruction, or cause of obstruction; a stop; a hindrance; an obstacle; as, a block in the way.
  • (v. t.) A piece of box or other wood for engravers' work.
  • (v. t.) A piece of hard wood (as mahogany or cherry) on which a stereotype or electrotype plate is mounted to make it type high.
  • (v. t.) A blockhead; a stupid fellow; a dolt.
  • (v. t.) A section of a railroad where the block system is used. See Block system, below.
  • (n.) To obstruct so as to prevent passage or progress; to prevent passage from, through, or into, by obstructing the way; -- used both of persons and things; -- often followed by up; as, to block up a road or harbor.
  • (n.) To secure or support by means of blocks; to secure, as two boards at their angles of intersection, by pieces of wood glued to each.
  • (n.) To shape on, or stamp with, a block; as, to block a hat.

Example Sentences:

  • (1) Application of 40 microM NiCl2 reversibly blocked It while leaving Is intact, whereas 20 microM CdCl2 reversibly blocked Is, but not It.
  • (2) The effects of sessions, individual characteristics, group behavior, sedative medications, and pharmacological anticipation, on simple visual and auditory reaction time were evaluated with a randomized block design.
  • (3) In addition, DDT blocked succinate dehydrogenase and the cytochrome b-c span of the electron transport chain, which also secondarily reduced ATP synthesis.
  • (4) Subsequently, the study of bundle branch block and A-V block cases revealed that no explicit correlation existed between histopathological changes and functional disturbances nor between disturbances in conduction (i.e.
  • (5) beta-Endorphin blocked the development of fighting responses when a low footshock intensity was used, but facilitated it when a high shock intensity was delivered.
  • (6) However, some contactless transactions are processed offline so may not appear on a customer’s account until after the block has been applied.” It says payments that had been made offline on the day of cancellation may be applied to accounts and would be refunded when the customer identified them; payments made on days after the cancellation will not be taken from an account.
  • (7) Complete heart block was produced in 20 of 20 dogs.
  • (8) A strong block to the elongation of nascent RNA transcripts by RNA polymerase II occurs in the 5' part of the mammalian c-fos proto-oncogene.
  • (9) In this case, actinomycin D does not block the reinduction of N-acetyltransferase by isoproterenol or by dibutyryl cyclic AMP.
  • (10) The latter result indicates that the dexamethasone block is upstream from release of esterified arachidonic acid.
  • (11) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
  • (12) I hope this movement will continue and spread for it has within itself the power to stand up to fascism, be victorious in the face of extremism and say no to oppressive political powers everywhere.” Appearing via videolink from Tehran, and joined by London mayor Sadiq Khan and Palme d’Or winner Mike Leigh, Farhadi said: “We are all citizens of the world and I will endeavour to protect and spread this unity.” The London screening of The Salesman on Sunday evening wasintended to be a show of unity and strength against Trump’s travel ban, which attempted to block arrivals in the US from seven predominantly Muslim countries: Iran, Iraq, Libya, Sudan, Somalia, Syria and Yemen.
  • (13) I felt a much stronger connection with the kids on my home block, who I rode bikes with nightly.
  • (14) It contains 10,000 apartments so far, in blocks that might appear Soviet but for shades of blue, green and yellow.
  • (15) We concluded that ketamine potentiates the Phase I and the Phase II neuromuscular blocks of succinylcholine.
  • (16) Biotin-avidin immunoperoxidase analysis for hCG was performed on all paraffin blocks containing carcinoma-in-situ, grade I, grade II, and grade III transitional cell carcinoma.
  • (17) Blocking the heparin-binding domains of fibronectin inhibited osteoblast attachment by 40-45%, which is complementary to inhibition results previously obtained with the RGDS tetrapeptide.
  • (18) The results indicated that smoke, as opposed to sham puffs, significantly reduced reports of cigarette craving, and local anesthesia significantly blocked this immediate reduction in craving produced by smoke inhalation.
  • (19) In a control study an inert stereoisomer, d-propranolol, did not block the ocular dominance shift.
  • (20) Blocks of hippocampal tissue containing the fascia dentata were taken from late embryonic and newborn rats and transplanted to the hippocampal region of other newborn and young adult rats.

Sheave


Definition:

  • (v.) A wheel having a groove in the rim for a rope to work in, and set in a block, mast, or the like; the wheel of a pulley.
  • (v. t.) To gather and bind into a sheaf or sheaves; hence, to collect.

Example Sentences:

  • (1) Ultrastructurally, clusters of intermediate filaments, twisted sheaves of filaments resembling tonofilaments, intermediate junctions, and intracellular canaliculi were found in these cells.
  • (2) Nineteen years ago I’d collected sheaves of estate agents’ details and piled them into Yes, No, Maybe.
  • (3) The art critic John Ruskin claimed to have burned sheaves of them in 1858, but 10 years ago an expert at the Tate Gallery came to the conclusion that this never happened.
  • (4) From the end of the first month to the sixth month small sheaves of smooth-muscle cells were observed in the cicatricial tissue.
  • (5) When you rush big projects in sensitive places, you increase the potential for a disaster – it regularly leads to massive environmental damage and an expensive clean-up that could have been prevented if there had been detailed scientific consideration and community engagement,” Sheaves said.
  • (6) Most days at midday, Uber’s nondescript office in London’s King’s Cross opens its doors and dozens of men clutching sheaves of driving licences and insurance documents pour in.
  • (7) Almost all asbestos fibers detected in the tap water possessed the form of thick or sheaved fibers with lengths ranging from ca.
  • (8) Still employed in the early 1990s, the classic label sported a blue-and-white striped milk jug beside two cherry-red mugs, resting on sheaves of wheat, against an luminous yellow arc of - well, obviously, an incandescent light bulb.
  • (9) "If we paint the phases of a riot, the crowd bustling with uplifted fists and the noisy onslaught of the cavalry are translated upon the canvas in sheaves of lines corresponding to the conflicting forces, following the general law of violence of the picture.
  • (10) Prof Marcus Sheaves, head of marine biology at James Cook University, said the lack of a considered process around the wetlands plan was “a serious concern”.
  • (11) Sheaves questioned the lack of a plan for “detailed integrated assessment of all components of the proposal and their implications, despite the sensitive nature of location of the proposed dredge-spoil dumping, and the public concern over the proposal”.
  • (12) Benign prostatic epithelium showed vimentin intermediate filaments distinctively distributed in the basal regions and as paranuclear sheaves along the long axis of the cell.
  • (13) Sheaves of complexly organized fibrillar components appear in the neuronal perikaryon; and ribosomes, Golgi elements, and microtubules are conspicuously numerous.
  • (14) Sheaves said coastal wetlands were crucial to the health of the Great Barrier Reef , as they prevented certain sediments and pollutants from flowing onto the coral.
  • (15) The differentiation of their processes was observed to involve a series of complex events related to retraction of the thick apical processes from the tips of which sheaves of filiform processes emerged, growth in the number and the thickness of the filiform processes, resorption of some of these filiform processes, cyclic changes in the appearance, resorption and reappearance of excrescences on the filiform processes, and changes in size and shape of the growth cones.
  • (16) Most myofibroblasts contained only sheaves of myofilaments along the margins of the cells, but some cells contained larger bundles of myofilaments and very closely resembled smooth muscle cells.
  • (17) Crystals may be arranged in sheaves or bundles and pass from one cell to another disrupting the continuity of membranes of both cells and nuclei.
  • (18) The public probably don’t see it but she has sheaves of handwritten notes.” The historical role of the PAC has been to dig into misspending by Whitehall, such as the tagging scandal that saw G4S and Serco charging for dead offenders (“Shocking complacency”, said Hodge).
  • (19) Many differentiated tumor cells contained organelles, such as vesicle-crowned lamellae (synaptic ribbons) and microtubular sheaves, as consistent with adult hamster pineocytes.
  • (20) One of the most famous bonfires in British art history, the destruction in 1858 of sheaves of erotic paintings by JMW Turner, by the horrified critic John Ruskin, never happened.