dog /ˈdɔg, ˈdɑg/
 狗,犬;家夥(v.)跟蹤,追蹤
 dog /ˈdɔg/ 名詞
 卡子,爪子,掣子,軋頭,狗
 Dog n.
 1. Zool. A quadruped of the genus Canis, esp. the domestic dog (Canis familiaris).
 Note: The dog is distinguished above all others of the inferior animals for intelligence, docility, and attachment to man. There are numerous carefully bred varieties, as the akita, beagle, bloodhound, bulldog, coachdog, collie, Danish dog, foxhound, greyhound, mastiff, pointer, poodle, St. Bernard, setter, spaniel, spitz, terrier, German shepherd, pit bull, Chihuahua, etc.  There are also many mixed breeds, and partially domesticated varieties, as well as wild dogs, like the dingo and dhole. (See these names in the Vocabulary.)
 2. A mean, worthless fellow; a wretch.
    What is thy servant, which is but a dog, that he should do this great thing?   -- 2 Kings viii. 13 (Rev. Ver. )
 3. A fellow; -- used humorously or contemptuously; as, a sly dog; a lazy dog. [Colloq.]
 4. Astron. One of the two constellations, Canis Major and Canis Minor, or the Greater Dog and the Lesser Dog. Canis Major contains the Dog Star (Sirius).
 5. An iron for holding wood in a fireplace; a firedog; an andiron.
 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.
 Note: ☞ 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 Zool., 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 Zool., 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 Zool., 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 Zool., a salmon of northwest America and northern Asia; -- the gorbuscha; -- called also holia, and hone.
 Dog shark. Zool. 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 Zool., any species of univalve shells of the family Nassidæ, esp. the Nassa reticulata of England.
 To give to the dogs, or To 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.
 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.
    I have been pursued, dogged, and waylaid.   -- Pope.
    Your sins will dog you, pursue you.   --Burroughs.
    Eager ill-bred petitioners, who do not so properly supplicate as hunt the person whom they address to, dogging him from place to place, till they even extort an answer to their rude requests.   -- South.
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 dog
      n 1: a member of the genus Canis (probably descended from the
           common wolf) that has been domesticated by man since
           prehistoric times; occurs in many breeds; "the dog
           barked all night" [syn: domestic dog, Canis
           familiaris]
      2: a dull unattractive unpleasant girl or woman; "she got a
         reputation as a frump"; "she's a real dog" [syn: frump]
      3: informal term for a man; "you lucky dog"
      4: someone who is morally reprehensible; "you dirty dog" [syn:
         cad, bounder, blackguard, hound, heel]
      5: a smooth-textured sausage of minced beef or pork usually
         smoked; often served on a bread roll [syn: frank, frankfurter,
          hotdog, hot dog, wiener, wienerwurst, weenie]
      6: a hinged catch that fits into a notch of a ratchet to move a
         wheel forward or prevent it from moving backward [syn: pawl,
          detent, click]
      7: metal supports for logs in a fireplace; "the andirons were
         too hot to touch" [syn: andiron, firedog, dog-iron]
      v : go after with the intent to catch; "The policeman chased the
          mugger down the alley"; "the dog chased the rabbit" [syn:
           chase, chase after, trail, tail, tag, give
          chase, go after, track]
      [also: dogging, dogged]
 Dog
    frequently mentioned both in the Old and New Testaments. Dogs
    were used by the Hebrews as a watch for their houses (Isa.
    56:10), and for guarding their flocks (Job 30:1). There were
    also then as now troops of semi-wild dogs that wandered about
    devouring dead bodies and the offal of the streets (1 Kings
    14:11; 16:4; 21:19, 23; 22:38; Ps. 59:6, 14).
      As the dog was an unclean animal, the terms "dog," "dog's
    head," "dead dog," were used as terms of reproach or of
    humiliation (1 Sam. 24:14; 2 Sam. 3:8; 9:8; 16:9). Paul calls
    false apostles "dogs" (Phil. 3:2). Those who are shut out of the
    kingdom of heaven are also so designated (Rev. 22:15).
    Persecutors are called "dogs" (Ps. 22:16). Hazael's words, "Thy
    servant which is but a dog" (2 Kings 8:13), are spoken in mock
    humility=impossible that one so contemptible as he should attain
    to such power.