undecylenic acid in American English
(ˌʌndɛsəˈlɛnɪk; ˌʌndɛsəˈlinɪk)
a light-colored liquid or crystalline mass, C11H20O2, used in treating fungus infections of the skin, in making perfumes, etc.
Word origin
<
undecylene, C
11H
22 (< L
undecim, eleven < base of
unus, one +
decem, ten + -yl + -ene) + -ic