octadecyl

noun

oc·​ta·​dec·​yl

ˌäktəˈdesə̇l

: an alkyl radical C₁₈H₃₇ derived from an octadecane by removal of one hydrogen atom

especially : the normal radical CH₃(CH₂)₁₆CH₂−

Word History

Etymology

International Scientific Vocabulary octadecane + -yl

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