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Webster 1913 Edition

(lī̍-gŭs′trĭn)

Noun.

(Chem.)

A bitter principle found in the bark of the privet

(Ligustrum vulgare)

, and extracted as a white crystalline substance with a warm, bitter taste; – called also

ligustron

ligustrin ‎(uncountable)

(organic chemistry) A bitter principle found in the bark of the privet (Ligustrum vulgare).