'Pit viper' definitions:

Definition of 'pit viper'

(from WordNet)
noun
New World vipers with hollow fangs and a heat-sensitive pit on each side of the head

Definition of 'Pit viper'

From: GCIDE
  • Pit \Pit\, n. [OE. pit, put, AS. pytt a pit, hole, L. puteus a well, pit.]
  • 1. A large cavity or hole in the ground, either natural or artificial; a cavity in the surface of a body; an indentation; specifically: (a) The shaft of a coal mine; a coal pit. (b) A large hole in the ground from which material is dug or quarried; as, a stone pit; a gravel pit; or in which material is made by burning; as, a lime pit; a charcoal pit. (c) A vat sunk in the ground; as, a tan pit. [1913 Webster]
  • Tumble me into some loathsome pit. --Shak. [1913 Webster]
  • 2. Any abyss; especially, the grave, or hades. [1913 Webster]
  • Back to the infernal pit I drag thee chained. --Milton. [1913 Webster]
  • He keepth back his soul from the pit. --Job xxxiii. 18. [1913 Webster]
  • 3. A covered deep hole for entrapping wild beasts; a pitfall; hence, a trap; a snare. Also used figuratively. [1913 Webster]
  • The anointed of the Lord was taken in their pits. --Lam. iv. 20. [1913 Webster]
  • 4. A depression or hollow in the surface of the human body; as: (a) The hollow place under the shoulder or arm; the axilla, or armpit. (b) See Pit of the stomach (below). (c) The indentation or mark left by a pustule, as in smallpox. [1913 Webster]
  • 5. Formerly, that part of a theater, on the floor of the house, below the level of the stage and behind the orchestra; now, in England, commonly the part behind the stalls; in the United States, the parquet; also, the occupants of such a part of a theater. [1913 Webster]
  • 6. An inclosed area into which gamecocks, dogs, and other animals are brought to fight, or where dogs are trained to kill rats. "As fiercely as two gamecocks in the pit." --Locke. [1913 Webster]
  • 7. [Cf. D. pit, akin to E. pith.] (Bot.) (a) The endocarp of a drupe, and its contained seed or seeds; a stone; as, a peach pit; a cherry pit, etc. (b) A depression or thin spot in the wall of a duct. [1913 Webster]
  • Cold pit (Hort.), an excavation in the earth, lined with masonry or boards, and covered with glass, but not artificially heated, -- used in winter for the storing and protection of half-hardly plants, and sometimes in the spring as a forcing bed.
  • Pit coal, coal dug from the earth; mineral coal.
  • Pit frame, the framework over the shaft of a coal mine.
  • Pit head, the surface of the ground at the mouth of a pit or mine.
  • Pit kiln, an oven for coking coal.
  • Pit martin (Zool.), the bank swallow. [Prov. Eng.]
  • Pit of the stomach (Anat.), the depression on the middle line of the epigastric region of the abdomen at the lower end of the sternum; the infrasternal depression.
  • Pit saw (Mech.), a saw worked by two men, one of whom stands on the log and the other beneath it. The place of the latter is often in a pit, whence the name.
  • pit stop, See pit stop in the vocabulary.
  • Pit viper (Zool.), any viperine snake having a deep pit on each side of the snout. The rattlesnake and copperhead are examples.
  • Working pit (Min.), a shaft in which the ore is hoisted and the workmen carried; -- in distinction from a shaft used for the pumps. [1913 Webster]