| slovo | definícia |
C30H50O2
(gcide) | Betulin \Bet"u*lin\, n. [L. betula birch tree.] (Chem.)
a term originally applied to a substance obtained as a resin
or tar by extraction from the outer bark of the common
European white birch (Betula alba); now referring to the
chemical compound (C30H50O2) having a
cyclopentanophenanthrene ring system, which is the main
constituent of that extract, and which may be obtained
crystalline; -- called also birch camphor. --Watts.
[1913 Webster +PJC] |
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