What's the difference between block and shield?

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.

Shield


Definition:

  • (n.) A broad piece of defensive armor, carried on the arm, -- formerly in general use in war, for the protection of the body. See Buckler.
  • (n.) Anything which protects or defends; defense; shelter; protection.
  • (n.) Figuratively, one who protects or defends.
  • (n.) In lichens, a Hardened cup or disk surrounded by a rim and containing the fructification, or asci.
  • (n.) The escutcheon or field on which are placed the bearings in coats of arms. Cf. Lozenge. See Illust. of Escutcheon.
  • (n.) A framework used to protect workmen in making an adit under ground, and capable of being pushed along as excavation progresses.
  • (n.) A spot resembling, or having the form of, a shield.
  • (n.) A coin, the old French crown, or ecu, having on one side the figure of a shield.
  • (n.) To cover with, or as with, a shield; to cover from danger; to defend; to protect from assault or injury.
  • (n.) To ward off; to keep off or out.
  • (n.) To avert, as a misfortune; hence, as a supplicatory exclamation, forbid!

Example Sentences:

  • (1) 11 patients with a postoperative classification of stage D had additional external beam radiation to the pelvic and paraaortic lymph nodes with shielding of the implanted prostatic region.
  • (2) An effective gonadal shield should reduce the gonadal dose to a level low enough to preserve spermatogenesis in most patients.
  • (3) Scott was born in North Shields, Tyne and Wear, the youngest of the three sons of Colonel Francis Percy Scott, who served in the Royal Engineers, and his wife, Elizabeth.
  • (4) Fred had to be substituted to shield him from the crowd’s disdain.
  • (5) Was the Dalkon Shield so harmful in the nulliparous woman?
  • (6) Physicians need to prescribe the lowest possible dose of hormones in these women and counsel them to shield their face from sunlight.
  • (7) Moulton said his colleagues were preparing to table an offer next week that will shield 50% of the council's staff from a pay cut.
  • (8) Adult males acclimated to an LD 14:10 photoperiod were distributed in five experimental groups: intact controls (NO), sham-pinealectomized (S), sham-pinealectomized with black plastic shielding of the pineal region, pinealectomized (PX), and pinealectomized with the operated region shielded.
  • (9) In order to evaluate long-term as well as short-term effects, blood loss was measured at postinsertion levels of 6, 12, and 18 months in 72 women wearing the Lippes loop, in 73 wearing the Dalkon shield, and in 82 with TCu 300.
  • (10) Using the outer 2 mm of the skin-fold, and shielding the rest of the hand with a lead plate, cutaneous blood flow rate could be monitored separately.
  • (11) Shielded marrow self renewal capacity, a measurement reflecting primitive hematopoietic stem cell function, remained depressed and did not recover with time.
  • (12) We believe the shield makes the patient more comfortable and decreases the likelihood of dislodgement of the adhesive.
  • (13) He lost contact with his father, a lorry driver, for several years, but says that his mother - aided by his uncle - made it her mission to shield him from the crime and disorder around them.
  • (14) The lead shield encloses only the testes, allowing its use with nearly any radiation field that does not include the testes.
  • (15) "Let us arm ourselves with the weapon of knowledge and let us shield ourselves with unity and togetherness," Malala said.
  • (16) I’m not satisfied until I collect everything' … EFL Cup Europa League International Champions Cup Community Shield Which competition was Ian Rush talking about when he said: 'This is why cup finals are so special, because anyone can beat anyone.
  • (17) Nemanja Matic, more normally such a man-mountain of a midfield shield, is diminished and was beaten too easily in the air by James Morrison for the home side’s second.
  • (18) The results indicate that collagen shields can slowly release cyclosporin A and increase the penetration time for the drug.
  • (19) Shields accepted that the Irish appeared more inclined to send up their grim fiscal situation than go out and riot.
  • (20) Some Coalition MPs raised concerns earlier this year that transparency could expose wealthy business owners to security risks, including kidnapping , and the government prepared legislation to shield private Australian companies.