What's the difference between anchor and screw?

Anchor


Definition:

  • (n.) A iron instrument which is attached to a ship by a cable (rope or chain), and which, being cast overboard, lays hold of the earth by a fluke or hook and thus retains the ship in a particular station.
  • (n.) Any instrument or contrivance serving a purpose like that of a ship's anchor, as an arrangement of timber to hold a dam fast; a contrivance to hold the end of a bridge cable, or other similar part; a contrivance used by founders to hold the core of a mold in place.
  • (n.) Fig.: That which gives stability or security; that on which we place dependence for safety.
  • (n.) An emblem of hope.
  • (n.) A metal tie holding adjoining parts of a building together.
  • (n.) Carved work, somewhat resembling an anchor or arrowhead; -- a part of the ornaments of certain moldings. It is seen in the echinus, or egg-and-anchor (called also egg-and-dart, egg-and-tongue) ornament.
  • (n.) One of the anchor-shaped spicules of certain sponges; also, one of the calcareous spinules of certain Holothurians, as in species of Synapta.
  • (v. t.) To place at anchor; to secure by an anchor; as, to anchor a ship.
  • (v. t.) To fix or fasten; to fix in a stable condition; as, to anchor the cables of a suspension bridge.
  • (v. i.) To cast anchor; to come to anchor; as, our ship (or the captain) anchored in the stream.
  • (v. i.) To stop; to fix or rest.
  • (n.) An anchoret.

Example Sentences:

  • (1) The haplotype of the recombinant X chromosome of each of 241 backcross progeny has been established using the X-linked anchor loci Otc, Hprt, Dmd, Pgk-1, and Amg and the additional probes DXSmh43 and Cbx-rs1.
  • (2) The popularly used procedure in Great Britain is that in which a sheet of Ivalon sponge is sutured to the sacrum and wrapped around the rectum thus anchoring it in place.
  • (3) The company also confirmed on Thursday as it launched its sports pay-TV offering at its new broadcasting base in the Olympic Park in Stratford, east London, that former BBC presenter Jake Humphrey will anchor its Premier League coverage.
  • (4) Since the introduction of osseointegrated titanium implants for bone-anchored facial and dental prostheses, an increasing number of irradiated patients are being treated with this technique.
  • (5) The brain enzyme did not contain components characteristic of the glycolipid anchors of erythrocyte acetylcholinesterases.
  • (6) Our findings support the proposal that bcd transcripts are selectively recognized and trapped as they enter the anterior tip of the oocyte, and suggest that this localization process is mediated by anchored sequence-specific receptors in the oocyte cytoplasm.
  • (7) Sanders, the Vermont senator and self-described democratic socialist, first answered questions from Fox News anchor Bret Baier over his comments in Sunday’s debate that white people “don’t know what it’s like to be living in a ghetto”.
  • (8) A truncated anchor-minus form of the G2 glycoprotein was found to be secreted into the culture medium, but was retained in the Golgi complex when coexpressed with the G1 glycoprotein.
  • (9) Major histocompatibility complex (MHC) class 1 molecules that were either transmembrane- (H-2Db) or glycosylphosphatidylinositol (GPI)-anchored (Qa2) were labeled with antibody-coated gold particles and moved across the cell surface with a laser optical tweezers until they encountered a barrier, the barrier-free path length (BFP).
  • (10) This lipid has a hybrid nature of an archaeal feature in alkyl glycerol diether core portion and an eucaryal feature in the polar head group identical to the conserved core structure (GlcNp(alpha 1-6)-myo-inositol 1-phosphate) of glycosylated phosphatidylinositol which serves as a membrane protein anchor in eucaryal cells.
  • (11) Ultrastructurally these glands had apical microvilli with associated glycocalyx and long anchoring rootlets.
  • (12) This was confirmed by the crystal structures, which also showed that the Gln46 amide is hydrogen bonded to the Phe100 N and O atoms, and tightly anchored in this position.
  • (13) Each of the two chemically identical subunits folds into a three-layer domain anchored by a large six-stranded mixed beta sheet.
  • (14) A group of proteins anchored to the cell by phosphatidylinositol (PI) has recently been identified.
  • (15) In conclusion, the N-linked sugar chains are not required for in vitro activity but required for in vivo activity, acting as anchors for the essential terminal sialic acids.
  • (16) Replacement of the COOH-terminal hydrophobic domain with a signal peptide that normally functions in membrane translocation, or with a random hydrophobic sequence, results in efficient and correct processing, producing GPI-anchored DAF on the cell surface.
  • (17) Since the corresponding keto analogue, N-[(R)-2-benzyl-5-cyano-4-oxopentanyl]-L-phenylalanine (compound 4), does not inactivate the enzyme, it is suggested that the NH in compound 1 is critical for the proper active-site anchoring of the inhibitor for the inactivation process to take place.
  • (18) Facebook Twitter Pinterest Donald Trump questions US citizenship of ‘anchor babies’.
  • (19) This tissue may anchor the lead so that it is difficult, dangerous, or impossible to remove it.
  • (20) The anchoring wire can also be retracted and repositioned.

Screw


Definition:

  • (n.) A cylinder, or a cylindrical perforation, having a continuous rib, called the thread, winding round it spirally at a constant inclination, so as to leave a continuous spiral groove between one turn and the next, -- used chiefly for producing, when revolved, motion or pressure in the direction of its axis, by the sliding of the threads of the cylinder in the grooves between the threads of the perforation adapted to it, the former being distinguished as the external, or male screw, or, more usually the screw; the latter as the internal, or female screw, or, more usually, the nut.
  • (n.) Specifically, a kind of nail with a spiral thread and a head with a nick to receive the end of the screw-driver. Screws are much used to hold together pieces of wood or to fasten something; -- called also wood screws, and screw nails. See also Screw bolt, below.
  • (n.) Anything shaped or acting like a screw; esp., a form of wheel for propelling steam vessels. It is placed at the stern, and furnished with blades having helicoidal surfaces to act against the water in the manner of a screw. See Screw propeller, below.
  • (n.) A steam vesel propelled by a screw instead of wheels; a screw steamer; a propeller.
  • (n.) An extortioner; a sharp bargainer; a skinflint; a niggard.
  • (n.) An instructor who examines with great or unnecessary severity; also, a searching or strict examination of a student by an instructor.
  • (n.) A small packet of tobacco.
  • (n.) An unsound or worn-out horse, useful as a hack, and commonly of good appearance.
  • (n.) A straight line in space with which a definite linear magnitude termed the pitch is associated (cf. 5th Pitch, 10 (b)). It is used to express the displacement of a rigid body, which may always be made to consist of a rotation about an axis combined with a translation parallel to that axis.
  • (n.) An amphipod crustacean; as, the skeleton screw (Caprella). See Sand screw, under Sand.
  • (v. t.) To turn, as a screw; to apply a screw to; to press, fasten, or make firm, by means of a screw or screws; as, to screw a lock on a door; to screw a press.
  • (v. t.) To force; to squeeze; to press, as by screws.
  • (v. t.) Hence: To practice extortion upon; to oppress by unreasonable or extortionate exactions.
  • (v. t.) To twist; to distort; as, to screw his visage.
  • (v. t.) To examine rigidly, as a student; to subject to a severe examination.
  • (v. i.) To use violent mans in making exactions; to be oppressive or exacting.
  • (v. i.) To turn one's self uneasily with a twisting motion; as, he screws about in his chair.

Example Sentences:

  • (1) Total excision and immediate reconstruction were done with alloplastic material fixated with microplates and screws.
  • (2) Two hundred and forty root canals of extracted single-rooted teeth were prepared to the same dimension, and Dentatus posts of equal size were cemented without screwing them into the dentine.
  • (3) The committee's findings include that the attacks were not extensively planned by the perpetrators; the intelligence community did a good job of warning about the risk of an attack but a bad job of summarizing the attack when it happened; the state department screwed up by not beefing up security at the mission; nobody blocked any military response; and that the Obama administration was slow to produce a paper trail but was generally not a sinister actor in the episode.
  • (4) The pedicle screw systems were always the most rigid.
  • (5) Closure is accomplished by suture of soft tissues and reattachment of the posterior trochanteric fragment with bone screws.
  • (6) Two of the 7 sets of iliosacral screws failed postoperatively (28%).
  • (7) An algorithm is implemented to determine the form and phase shift for inconsistent type II quadrupoles for any space group having glide or screw-axis translations which are not a consequence of lattice centering.
  • (8) It constitutes an alternative to Ender nailing, screw-plate, and nail-plate.
  • (9) Changes in radiostrontium clearance (SrC) and bone formation (tetracycline labeling) were observed in the femurs of skeletally mature dogs following the various operative steps involved in bone screw fixation.
  • (10) Several conventional internal fixation techniques and a three converging screw method were used.
  • (11) The criteria of failure of pedicular instrumentation or "death" of an implant were defined as 1) screw bending, 2) screw breakage, 3) infection, 4) loosening of implants, 5) any rod or plate hardware problems, or 6) removal of hardware due to a neurologic complication.
  • (12) Cadaver studies have been carried out and transpedicular screw position has been confirmed by computed tomography scan.
  • (13) In this study, we performed a series of in vitro tests to compare the breaking strength of plated bone analogues that used either unicortical or bicortical end screws.
  • (14) Successful treatment of scaphoid nonunions with screw fixation and cast-free after-treatment does not depend on the implant used but rather on careful case selection and precise surgical technique.
  • (15) The Herbert bone screw was initially developed for management of fractures of the carpal scaphoid.
  • (16) Plus, unlike planet-screwing fossil fuels, solar could actually be subsidy-free in a few years.
  • (17) The intensity-measuring device in both apparatuses has a mobile disk attached to a motionless axis by a spiral spring; the clamps have fixing screws in the butts of a spong.
  • (18) A variety of quality tests, of biomechanical screws, are used, before performing the operations, that flaws may be detected.
  • (19) Most fractures were fixed with interfragmentary screws and external fixators.
  • (20) To give variations in the peak flow-rate (from pulsatile to intermediate to non-pulsatile), three types of blood pump (piston-bellows, screw, and centrifugal) were applied to dogs.