| 单词 | crab |
| 释义 | crab 1. n. 1. a any of numerous ten-footed crustaceans having the first pair of legs modified as pincers. b the flesh of a crab, esp. Cancer pagurus, as food. 2. (the Crab) the zodiacal sign or constellation Cancer. 3. (in full crab-louse) (often in pl.) a parasitic louse, Phthirus pubis, infesting hairy parts of the body and causing extreme irritation. 4. a machine for hoisting heavy weights. Phrases and idioms catch a crab Rowing effect a faulty stroke in which the oar is jammed under water or misses the water altogether. crab-grass US a creeping grass infesting lawns. crab-pot a wicker trap for crabs. Derivatives crablike adj. Etymology: OE crabba, rel. to ON krafla scratch 2. n. 1. (in full crab-apple) a small sour apple-like fruit. 2. (in full crab tree or crab-apple tree) any of several trees bearing this fruit. 3. a sour person. Etymology: ME, perh. alt. (after CRAB(1) or CRABBED) of earlier scrab, prob. of Scand. orig. 3. v. (crabbed, crabbing) colloq. 1. tr. & intr. criticize adversely or captiously; grumble. 2. tr. act so as to spoil (the mistake crabbed his chances). Etymology: orig. of hawks fighting, f. MLG krabben |
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