| 释义 |
cedr-
repr. L. cedr-us cedar, forming terms of chemistry, etc. ˈcedrene, a liquid hydrocarbon (C32H21) found in the resin of the cedar of Lebanon. † ˈcedria, a name applied sometimes to the oil of cedar, sometimes to the pitch or resin, but properly to the crude tears of the cedar. (Syd. Soc. Lex.) cedriret, a product obtained by Reichenbach from the tar of beechwood, said to crystallize in fine needles. ˈcedrium = cedria.
c1420Pallad. on Husb. i. 926 Thai thurle a nutte, & stuffe it so withinne With brymstoon, chaf, & cedria. 1579Langham Gard. Health (1633) 127 Cedria, the liquor of Cedar swageth toothach being put therein. 1847Craig, Cedriret crystallises into a kind of net-work, composed of red crystals. 1708–15Kersey, Cedrium. |