undecenoic acid

noun
un·​dec·​e·​no·​ic acid | \ ˌən-ˌdes-ə-ˌnō-ik- How to pronounce undecenoic acid (audio) \

Medical Definition of undecenoic acid

: any of several isomeric straight-chain unsaturated acids C11H20O2 (as undecylenic acid)