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A sharp, slender, usually curved nail on the toe of an animal.
[L. clavus, a nail]
Farlex Partner Medical Dictionary © Farlex 2012


1. A sharp, curved, horny structure at the end of a toe of a vertebrate animal.
a. A chela or similar pincerlike structure on the end of a limb of a crustacean or arachnid.
b. One of one or more small curved structures at the tip of an appendage of an invertebrate, especially an insect or other arthropod.
c. A limb terminating in such a structure.
tr. & intr.v. clawed, clawing, claws
To scratch, dig, tear, or pull with the claws or fingernails.

clawed adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

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References in periodicals archive ?
Results of this study have guided the selection of 5 permanent inventory sites on the Stikine River based on amphibian breeding activity and historical data availability: Mallard Slough, Cheliped Bay, Twin Lakes, Twin Lakes Warm Springs, and Shakes Hot Springs.
uncinatus holding Crab either as a a lizard (Norops lemurinus) predator or in its right (major) cheliped scavenger (Fig.
pelagicus, only 14 crabs (or 0.71%) displayed abnormalities either in carapace, chelipeds, swimming leg, or abdomen.
Crabs of the genus Uca are a good example for this phenomenon, as males use their hypertrophied cheliped during courtship [40].
Only crayfish in their intermolt stage, possessing all walking legs and both chelipeds were used in these studies.
The purpose of this project was to determine if male fiddler crabs that have lost their large cheliped, which remolds to a smaller size, would continue their normal reproductive patterns.
To evaluate the population genetic and morphological structures of this semiterrestrial crab, and to test the influence of the Central South Equatorial Current (CSEC) as a geographic barrier to gene flow, we here present 1) haplotype data from the cytochrome c oxidase subunit 1 (Cox1) mitochondrial gene, 2) data on shape variation of the carapace and cheliped propodus, and 3) an evaluation of the correlation between the morphological and genetic distances from six populations along the Brazilian coast.
In this case, early maturity in brachyurans can be detected by changes in the growth proportions (relative or allometric) of structures associated with secondary sexual characteristics such as the cheliped in males and the abdomen width in females (Hartnoll, 1974; Hartnoll, 1982; Pinheiro & Fransozo, 1998).
The following morphological characteristics were measured: the carapace width (CW), the height and length of the major cheliped propodus (LPH and LPL), the width of the female abdomen at the base of the 4th somite (AW) and the length of the male gonopod (GL).