| 单词 | cog |
| 释义 | cog cog1 /kog, kawg/, n. , v. , cogged, cogging. n. 1. (not in technical use) a gear tooth, formerly esp. one of hardwood or metal, fitted into a slot in a gearwheel of less durable material. 2. a cogwheel. 3. a person who plays a minor part in a large organization, activity, etc.: He's just a small cog in the financial department. v.i. 4. (of an electric motor) to move jerkily. v.t. 5. to roll or hammer (an ingot) into a bloom or slab. 6. slip a cog, to make a blunder; err: One of the clerks must have slipped a cog. [1200-50; ME cogge, prob. < Scand; cf. Sw, Norw kugg cog] cog2 /kog, kawg/, v. , cogged, cogging. v.t. 1. to manipulate or load (dice) unfairly. v.i. 2. to cheat, esp. at dice. [1525-35; orig. uncert.] cog3 /kog, kawg/, n. , v. , cogged, cogging. n. 1. Carpentry. (in a cogged joint) the tongue in one timber, fitting into a corresponding slot in another. 2. Mining. a cluster of timber supports for a roof. Cf. chock (def. 4). v.t. , v.i. 3. Carpentry. to join with a cog. [1855-60; special use of COG1; r. cock in same sense, special use of COCK1 (in sense of projection); see COAK] |
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