6. (Mech.) (a) A grappling iron, with a claw or claws, for fastening into wood or other heavy articles, for the purpose of raising or moving them. (b) An iron with fangs fastening a log in a saw pit, or on the carriage of a sawmill. (c) A piece in machinery acting as a catch or clutch; especially, the carrier of a lathe, also, an adjustable stop to change motion, as in a machine tool.
Dog is used adjectively or in composition, commonly in the sense of relating to, or characteristic of, a dog. It is also used to denote a male; as, dog fox or g-fox, a male fox; dog otter or dog-otter, dog wolf, etc.; -- also to denote a thing of cheap or mean quality; as, dog Latin.
A dead dog, a thing of no use or value. 1 Sam. xxiv. 14. -- A dog in the manger, an ugly-natured person who prevents others from enjoying what would be an advantage to them but is none to him. -- Dog ape (Zoöl.), a male ape. -- Dog cabbage, or Dog's cabbage (Bot.), a succulent herb, native to the Mediterranean region (Thelygonum Cynocrambe). -- Dog cheap, very cheap. See under Cheap. -- Dog ear (Arch.), an acroterium. [Colloq.] -- Dog flea (Zoöl.), a species of flea (Pulex canis) which infests dogs and cats, and is often troublesome to man. In America it is the common flea. See Flea, and Aphaniptera. -- Dog grass (Bot.), a grass (Triticum caninum) of the same genus as wheat. -- Dog Latin, barbarous Latin; as, the dog Latin of pharmacy. -- Dog lichen (Bot.), a kind of lichen (Peltigera canina) growing on earth, rocks, and tree trunks, - - a lobed expansion, dingy green above and whitish with fuscous veins beneath. -- Dog louse (Zoöl.), a louse that infests the dog, esp. Hæmatopinus piliferus; another species is Trichodectes latus. -- Dog power, a machine operated by the weight of a dog traveling in a drum, or on an endless track, as for churning. -- Dog salmon (Zoöl.), a salmon of northwest America and northern Asia; -- the gorbuscha; -- called also holia, and hone. -- Dog shark. (Zoöl.) See Dogfish. -- Dog's meat, meat fit only for dogs; refuse; offal. -- Dog Star. See in the Vocabulary. -- Dog wheat (Bot.), Dog grass. -- Dog whelk (Zoöl.), any species of univalve shells of the family Nassidæ, esp. the Nassa reticulata of England. -- To give, or throw, to the dogs, to throw away as useless. "Throw physic to the dogs; I'll none of it." Shak. -- To go to the dogs, to go to ruin; to be ruined.
<! p. 442 !>
Dog (?), v. t. [imp. & p. p. Dogged (?); p. pr. & vb. n. Dogging.] To hunt or track like a hound; to follow insidiously or indefatigably; to chase with a dog or dogs; to worry, as if by dogs; to hound with importunity.