| 释义 |
rotenone Chem.|ˈrəʊtənəʊn|
Orig. † -on.
[ad. Jap. rotenon (K. Nagai 1902, in Jrnl. Tokyo Chem. Soc. XXIII. 753), f. roten derris: see -one.]
A toxic crystalline polycyclic ketone, C23H22O6, obtained from the roots of several species of plant (notably derris, cubé, and timbo), which is widely employed as an insecticide in the form of a powder or an emulsified spray. Also as v. trans., to treat with rotenone.
1924Chem. Abstr. XVIII. 408 From air-dried roots, 0·93% crude rotenon is obtained which is mixed with waxy impurities. 1925Ibid. XIX. 1708 Further analysis of rotenone, an active insecticidal principle of the root of Derris elliptica Benth. 1962Gordon & Lavoipierre Entomol. ix. 57 Fine dusts containing pyrethrum or rotenone are highly successful when employed against various insects such as fleas and lice. 1975New Yorker 19 May 45/3 We poison out a small reef by squirting in emulsified rotenone, a chemical poison derived from the root of a South American plant called cubé, originally used by Indians for fishing. Ibid. 46/1 You rotenone a reef, and for the next hour or two you pick the samplings up. 1977Lewis & Elvin-Lewis Med. Bot. ii. 45 Tephrosia cinerea, yielding rotenone and the toxic principle tephrosin, is used in Venezuela and Africa as a fish poison. |