请输入您要查询的英文单词:

 

单词 phytochemical
释义

phytochemicaladj.n.

Brit. /ˌfʌɪtəʊˈkɛmᵻkl/, U.S. /ˌfaɪdəˈkɛmək(ə)l/
Origin: Formed within English, by compounding. Etymons: phyto- comb. form, chemical adj.
Etymology: < phyto- comb. form + chemical adj. Compare post-classical Latin phytochemicus (1834 or earlier), German phytochemisch (1820 or earlier).
A. adj.
Of or relating to the chemistry of plants and plant products.
ΘΚΠ
the world > plants > botany > [adjective] > specific branches or aspects
phytognomical1653
phytogeographic1857
phytochemical1858
phytogeographical1859
geobotanical1880
palaeobotanical1883
palaeophytological1885
phytobiological1887
phytopathological1887
geobotanic1888
palaeobotanic1889
floristic1898
phytosociological1922
1858 R. G. Mayne Expos. Lexicon Med. Sci. (1868) 959/1 Phytochemicus,..phytochemical.
1877 Chem. News 4 May 185/1 (heading) On phyto-chemical processes.
1921 Exper. Station Rec. (U.S. Dept. Agric.) 43 820 (heading) Phytochemical investigations on indigenous and naturalized plants.
1948 W. W. Pigman & R. M. Goepp Chem. Carbohydrates 187 Many phytochemical names such as salicin and helicin are in use for natural glycosides although chemical names are usually to be preferred since they indicate the structure.
1992 Chem. in Brit. (BNC) 28 141 Carbenoxolone was developed as a result of a phytochemical investigation of the roots and rhizomes of liquorice.
B. n.
Any of various types of biologically active compound found in plants.
ΘΚΠ
the world > matter > chemistry > organic chemistry > [noun] > organic compounds
organic1840
phytochemical1966
1966 Indian Jrnl. Exper. Bot. 4 216 (heading) Effect of psychotropic phytochemicals on cerebral amino acid level in mice.
1971 Ecol. Monogr. 41 48 Phytotoxins..and other phytochemicals alter the soil environment adversely.
1986 Oecologia 70 13 Even adapted insects incur a metabolic cost in the processing of their host's phytochemicals.
2002 Time 21 Jan. 77/3 Spinach contains two phytochemicals, lutein and zeaxanthin, that seem to ward off macular degeneration, a leading cause of blindness.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).
<
adj.n.1858
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:2024/11/10 15:50:54