a frog, Ascaphus truei, of the northwestern U.S. and adjacent Canada, the male of which has its cloaca modified into a taillike copulatory organ.
noun 1. the hinder or rear part of anything. 2. the concluding or final part or section; tag end: the tail end of a lecture. noun 1. the last, endmost, or final part 1. The rear or hindmost part, as in Douglas was at the tail end of the academic procession. [ Mid-1700s ] 2. […]
noun 1. the hindmost part of an animal, especially that forming a distinct, flexible appendage to the trunk. 2. something resembling or suggesting this in shape or position: the tail of a kite. 3. Astronomy. the luminous stream extending from the head of a comet. 4. the reverse of a coin (opposed to head). 5. […]
noun, Zoology. 1. the fanlike posterior appendage of crayfish and lobsters, consisting of a telson and two uropods, used for rapid backward propulsion. noun 1. the fanned structure at the hind end of a lobster or related crustacean, formed from the telson and uropods
noun 1. caudal fin. 2. Automotive. See under fin1 (def 7). noun 1. a membranous, winglike or paddlelike organ attached to any of various parts of the body of fishes and certain other aquatic animals, used for propulsion, steering, or balancing. 2. Nautical. a horizontal, often adjustable, winglike appendage to the underwater portion of a […]