What's the difference between crab and grab?

Crab


Definition:

  • (n.) One of the brachyuran Crustacea. They are mostly marine, and usually have a broad, short body, covered with a strong shell or carapace. The abdomen is small and curled up beneath the body.
  • (n.) The zodiacal constellation Cancer.
  • (a.) A crab apple; -- so named from its harsh taste.
  • (a.) A cudgel made of the wood of the crab tree; a crabstick.
  • (a.) A movable winch or windlass with powerful gearing, used with derricks, etc.
  • (a.) A form of windlass, or geared capstan, for hauling ships into dock, etc.
  • (a.) A machine used in ropewalks to stretch the yarn.
  • (a.) A claw for anchoring a portable machine.
  • (v. t.) To make sour or morose; to embitter.
  • (v. t.) To beat with a crabstick.
  • (v. i.) To drift sidewise or to leeward, as a vessel.
  • (a.) Sour; rough; austere.

Example Sentences:

  • (1) A total of 202 cultures of yeasts were isolated and characterized from king crab and Dungeness crab meat.
  • (2) King crabs (Family Lithodidae) are among the world's largest arthropods, having a crab-like morphology and a strongly calcified exoskeleton.
  • (3) Sarcomas (fleshy tumors) were distinguished from carcinoma (crab leg tumors) at the time of Hippocrates.
  • (4) In a second series, crabs were repeatedly exposed during training to a light pulse (CS) immediately followed by shock (UCS), and after a 6-h rest interval, tested with either CS-UCS or UCS.
  • (5) No blood group polymorphism was revealed by testing bonnet macaque red cells with isoantisera produced in rhesus monkeys (M. mulatta) and in crab-eating macaques (M. fascicularis).
  • (6) These findings provide ultrastructural correlates of the electrophysiological changes produced by glycerol treatment of the closer muscle of the ghost crab (Papir, 1973), namely, interference with excitation-contraction (e-c) coupling.
  • (7) A clottable protein, named coagulogen, was highly purified from the amoebocyte lysate of Japanese horseshoe crab (Tachypleus tridentatus) by a method similar to that used for the lysate of Limulus polyphemus amoebocytes.
  • (8) The carbon dioxide solubility coefficient, alphaCO2, and the apparent carbonic acid dissociation constants, K'1 and K'2 were estimated in the serum of the crab Carcinus maenas at various temperatures and ionic strengths.
  • (9) Two forms of cytochrome P-450 (P-450MC1 and P-450MC2) were purified from liver microsomes of crab-eating monkeys (Macaca irus) treated with 3-methylcholanthrene (MC).
  • (10) Electrical activity recorded intracellularly from peptidergic neurosecretory terminal dilatations in the sinus gland of crabs (principally Cardisoma guanhumi and C. carnifex) is described.
  • (11) Isolated muscle fibers from the motor legs of the crab Trichodactilus dilocarcinus were submitted to strong hyperpolarizing currents of varied intensities which produced tension during the current pulse.
  • (12) The amino acid sequence of troponin C obtained from horseshoe crab, Tachypleus tridentatus, striated muscle was determined by sequence analysis and alignments of chemically and enzymatically cleaved peptides.
  • (13) C.subimmaculatus was closely associated with a particular substrate and the presence of burrowing crabs.
  • (14) Our studies in crab-eating macaques indicate that presence in a mother's serum of potent antibodies reactive for red cells for her fetus will not necessarily cause erythroblastosis; in one case the maternal antibodies did not penetrate the placental barrier, and in two cases although the fetal red cells were maximally antibody-coated, they remained undamaged and the disease failed to develop.
  • (15) A 40-day adaptation of crabs to the freshened sea water results in an increase of maximal activity of Na,K-ATPase, but does not affect the enzyme affinity for ATP, Na+, K+, Mg2+ and ouabain, as well as its cooperative properties.
  • (16) When crab meat was ingested, none of these four arsenic species were observed at elevated levels until the urine was heated in 2N NaOH.
  • (17) Clots were allowed to form in samples of whole blood taken from the American horseshoe crab, Limulus polyphemus, in the absence and presence of dansylcadaverine (16), and were analyzed for their contents of N epsilon(gamma-glutamyl)lysine and gamma-glutamyl-dansylcadaverine.
  • (18) The experiments were performed on in vitro X-organ sinus gland neurosecretory systems from the eyestalk of the crab Cardisoma carnifex.
  • (19) On the upper reaches of the Cross River from the region around Mamfe and extending as far as the Nigerian fronter at Ekok, the crabs were infected exclusively with P. uterobilateralis.
  • (20) When the crabs Cancer antennarius and Petrolisthes cinctipes were in seawater (SW), amiloride (10(-4) M) reduced NH3 efflux by approximately 33 and 60%.

Grab


Definition:

  • (n.) A vessel used on the Malabar coast, having two or three masts.
  • (v. t. & i.) To gripe suddenly; to seize; to snatch; to clutch.
  • (n.) A sudden grasp or seizure.
  • (n.) An instrument for clutching objects for the purpose of raising them; -- specially applied to devices for withdrawing drills, etc., from artesian and other wells that are drilled, bored, or driven.

Example Sentences:

  • (1) During the couple's 30-year marriage she had twice reported him to the police for grabbing her by the throat, before they divorced in 2005.
  • (2) The ruling centre-right coalition government of Angela Merkel was dealt a blow by voters in a critical regional election on Sunday after the centre-left opposition secured a wafer-thin victory, setting the scene for a tension-filled national election in the autumn when everything will be up for grabs.
  • (3) Montreal also took advantage of the power play, as Tomas Vanek (again, another necessary scorer) grabbed one with the man advantage near the end of the second period to make it 3-0.
  • (4) Van Gaal argued that Huth had grabbed Fellaini’s considerable hair and claimed it ought to have been a penalty but the Football Association’s disciplinary department will surely take action.
  • (5) In a trailer shown Sunday for an upcoming documentary on state-run Rossiya-1 television called “Homeward bound”, Putin openly discusses Moscow’s controversial grabbing of Crimea a year ago.
  • (6) And also fear of the police because they weren't there and thinking any minute they could just run through and grab or hit anyone.
  • (7) One little boy grabbed me and pleaded with me, that the Jungle was not a good place, and he didn’t want to be there.” Last month, protesters staged a die-in at St Pancras station in London against plans to clear the area of the Jungle.
  • (8) The "fly on the wall" stuff is no more for the moment but, Andy, grab the opportunities when you can – a few years down the line when Cameron is on the lecture circuit and the rest of us are hanging up our cameras for good, you should have an unprecedented photographic record of a seat of power.
  • (9) Egypt • Morsi is due to meet senior judges to try to reach a compromise over the decree, viewed by many as a power grab.
  • (10) At that point I was grabbed by the Belgian secret service and slammed against the glass.
  • (11) I think the heart of good comedy really lives in truth and reacting to the absurdities, hypocrisies, abuses of power in the world.” Late night television is a no longer a glass of warm milk before bed, it’s a lunch buffet And as TV viewership declines and internet virality becomes as important as real-time eyeballs, cable networks might find that topical comedy is a smart, cost-effective way to grab cross-platform attention.
  • (12) Another officer grabbing Mann by the collar and threatening his family – to arrest his wife’s “black ass” and ensure he would not see his young son grow up, Mann recalled in an interview – if he did not snitch on a heroin dealer.
  • (13) Latino Review has a track record of attention-grabbing scoops, though its accuracy has occasionally been called into question.
  • (14) He is the embodiment of the belief that money and power provide a licence to impose one’s will on others, whether that entitlement is expressed by grabbing women or grabbing the finite resources from a planet on the verge of catastrophic warming.
  • (15) Then King grabbed the podium and set his prepared text to his left.
  • (16) "At lunchtime, he would grab food from other children's plates and eat it, and that was a cause of concern for the school staff."
  • (17) The bomb threat tweet was sent to Freeman, the Europe editor of Time magazine, Catherine Mayer, and the Independent columnist Grace Dent, who took a screen grab of the tweet and posted it for her Twitter followers to see .
  • (18) Who knows, maybe it's not the worst thing in the world for the Eastern Conference to be completely up for grabs.
  • (19) A waiter grabbed a table cloth to use as a stretcher, but a photographer took the boy in his arms to carry him to the ambulance.
  • (20) As night fell, one teenager, Alex, who had slipped out of an independent school (she refused to say which one) was heading home, pausing only grab a flier advertising a "Snow Rave" for 16-18-year-olds.