请输入您要查询的英文单词:

 

单词 endotherm
释义

endothermn.

/ˈɛndə(ʊ)θəːm/
Etymology: < endo- prefix and comb. form + Greek θέρμη heat, after homœotherm, etc.
1. Zoology. An endothermic animal.
ΘΚΠ
the world > animals > by habits or actions > [noun] > endothermic
endotherm1940
1940 R. B. Cowles in Amer. Naturalist 74 550 The implication of the name ‘homoiotherms’, which suggests the immutability of normal temperatures, is belied by many birds and mammals, and furthermore, both as a more suitable and logical contrast to the ectotherms, it is suggested that the warm blooded organisms may be conveniently referred to as endotherms.
1958 Evolution 12 349/1 The usual outward flow of heat in the endotherms, i.e. from body to the environment.
1972 Nature 14 July 81/1 Most birds and mammals are endotherms, producing at rest an order of magnitude more heat than a reptile of the same weight at the same temperature.
1985 D. Norman Illustr. Encycl. Dinosaurs 188/3 The proposition that Bakker made was that only animals with an endothermic physiology are capable of walking with an erect gait; therefore dinosaurs must have been endotherms.
2. Physical Chemistry. A part of a graph corresponding to an endothermic reaction or change, especially during the gradual heating of a substance.
ΘΚΠ
the world > matter > chemistry > physical chemistry > thermochemistry > [noun] > endothermic reactions > graphic representation
endotherm1955
1955 Analyt. Chem. 27 337/1 The order of reproducibility is such that semiquantitative calculations of the heat effects involved in these simple and well-defined endotherms are fairly reliable.
1960 Textile Res. Jrnl. 30 801/2 It is not possible..to present more than..speculations regarding the apparently double-peaked endotherms found for wool and mohair.
1975 Physics Bull. Dec. 525/2 The gel crystals (A) have sharp melt endotherms and produce distinct x ray patterns.
1987 Nature 10 Dec. 552/1 The DSC scans of the annealed samples showed an S-shaped endotherm in the temperature range, 134–152 K, which is characteristic of the glass transition.
This entry has not yet been fully updated (first published 1993; most recently modified version published online September 2021).
<
n.1940
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/9/21 3:16:27