(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%.
Shedder
Definition:
(n.) One who, or that which, sheds; as, a shedder of blood; a shedder of tears.
(n.) A crab in the act of casting its shell, or immediately afterwards while still soft; -- applied especially to the edible crabs, which are most prized while in this state.
Example Sentences:
(1) The basic high pathogenicity of these agents and of RS virus is indicated by the high frequency of illness among virus shedders (80-90%) and among seroconverting infants (greater than or equal 68%).
(2) Since no persistent shedders of antigen have been found so far, in some cases a recent hepatitis A can be detected by identification of HA Ag in a stool sample obtained as soon as possible after the onset of the disease.
(3) Among 164 nonvaccinated (control) cows, 39 (24%) were shedding C burnetii in their milk; this figure corresponded to the prevalence (23%) of shedders in the general population of dairy cows in California.
(4) The shedders were favoured by the artificial selection because of their shorter oviposition interval and this appeared to be responsible for the higher levels of ALV shedding in the selection lines.
(5) Among the 111 M. paratuberculosis fecal shedders, RCM, HEY and the probe detected the organism in 89.2%, 73.8% and 55.0% of the fecal specimens, respectively.
(6) Cohorting or exclusion from the day-care center of children who are asymptomatic shedders is not practical, and the management of cryptosporidiosis in day-care centers remains a major challenge.
(7) The relative risk (odds ratio) of a hen becoming a gs-antigen shedder was calculated for progenies of the dams shedding gs-antigen and those of non-shedding dams separately and pooled over three generations.
(8) Isolates from animals infected with the heterogeneous McKrae were classified as shedders (isolated in the absence of disease) and recurrent (isolated from a recurrent lesion).
(9) Horses identified to be shedding salmonellae in feces were not limited to those with clinical signs of salmonellosis; however, spread of salmonellae from a shedder without clinical signs of disease to other hospitalized horses was not identified.
(10) Information is lacking on certain aspects of the epidemiology of swine influenza that, if obtained, might shed some light on the epidemiology of human influenza, particularly with respect to inter-epidemic reservoirs and shedders of the virus.
(11) Vaccination may support control by reducing the pressure resulting from infection, though rapid elimination of shedders of M. Johnei as well as free calf rearing will continue to be essential in the effective control of 'clinical para-tuberculosis.
(12) Dogs may remain carriers and fecal shedders and thus serve as sources of salmonellosis for man and other animals.
(13) When virus titers in each of 8 tissue samples from the 6 transmitting hens were determined, the highest virus titers were found in washing from the ampulla of the oviducts in most of the shedders, suggesting that embryo infection is closely correlated with ALV produced at the oviduct, but not with ALV transferred from the other parts of the body.
(14) In the ASS line (1984 only), the differences between shedders and non-shedders were in the same direction, but in magnitude greater for rate of lay and smaller for oviposition interval.
(15) It is considered that a shedder state of virus had occurred some time during the fourth month following experimental infection.
(16) We analyzed the distribution of the different Ad7 genome types among 314 isolates from patients and healthy shedders.
(17) A controlled exposure trial confirmed that fecal shedders can transmit infection to susceptible contacts which subsequently demonstrate transient diarrhea.
(18) The number of shedders was closely linked with increasing doses of the drug, which indicates that lower doses do not interrupt infection completely and allow development of immunity.
(19) Infected horses generally make good recoveries but stallions may become semen shedders of equine arteritis virus (EAV).
(20) Temporal enzyme-linked immunosorbent assays with the A antigen revealed that all shedder rams displayed a rise-and-surge response, while rams which recovered from experimental challenge showed a rise-and-fall profile.