apiol

n. oily liquid extracted from parsley

Apiol is an organic chemical compound, also known as parsley apiol, apiole or parsley camphor. It is found in parsley seeds and the essential oil of parsley. Heinrich Christoph Link, an apothecary in Leipzig, discovered the substance in 1715 as greenish crystals reduced by steam from oil of parsley. In 1855 Joret and Homolle discovered that apiol was an effective treatment of amenorrea or lack of menstruation.
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(n.)
An oily liquid derived from parsley.