| 单词 | pit organ |
| 释义 | > as lemmaspit organ pit organ n. Zoology any of various sensory receptors situated in small depressions in the skin in various animals; spec. (a) a receptor associated with the lateral line system in many kinds of fish; (b) a receptor highly sensitive to changes in infrared radiation, situated in a small depression in front of each eye of a pit viper. ΘΚΠ the world > animals > reptiles > order Squamata (lizards and snakes) > suborder Ophidia (snakes) > types of snake > [noun] > family Viperidae (vipers) > subfamily Crotalinae > member of (pit-viper) > part of pit organ1903 1903 Science 13 Feb. 252/1 Organs of the acustico-lateral system... 1. Canal organs... 2. Pit organs, similar to the last, but each in a separate pit. 1969 Science 5 Dec. 1287/1 The mandibular pit organs of pelagic sharks..respond sensitively to monovalent cations. 1976 Nature 3 June 441/1 He did more classic work on the pit-organ of rattlesnakes, where he demonstrated the exquisite thermal sensitivity of this receptor. 1996 Proc. National Acad. Sci. U.S.A. 93 6079/2 In cases such as the rattlesnake's thermoreceptive pit organ, the sensitivity defies the imagination: a temperature change of 0.003°C can trigger a physiological response! < as lemmas |
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