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单词 lecanoric
释义

lecanoricadj.

/lɛkəˈnɒrɪk//lɛkəˈnɔːrɪk/
Etymology: < Lecanora, the name of a genus of lichens.
Chemistry.
lecanoric acid n. a crystalline substance obtained by Schunck from certain members of the genus Lecanora of lichens.
ΚΠ
1852 H. B. Jones & A. W. Hoffman Fownes's Man. Elem. Chem. (ed. 4) 576 Boiled with water for some time, erythric acid absorbs 2 eq. and yields picro-erythrin..and a new acid..which is termed by some chemists lecanoric, by others orsellinic acid.

Derivatives

lecanorate n. /lɛkəˈɔːrət/ a salt of lecanoric acid.
ΚΠ
1865 H. Watts Dict. Chem. III. 565 The lecanorates gradually decompose, especially when heated, yielding orsellinic acid, and ultimately orcin.
lecanorin n. /lɛkəˈnɔːrɪn/ = lecanoric acid n. at main sense.
ΚΠ
1844 G. Fownes Man. Elem. Chem. 488 Fresh dye-lichens, exhausted by ether, yield a crystalline substance, which when purified by solution in alcohol, is perfectly white; to this the name lecanorine has been given.
This entry has not yet been fully updated (first published 1902; most recently modified version published online June 2021).
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adj.1844
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更新时间:2024/9/21 8:11:54