Sorbic \Sor"bic\, a. [Cf. F. sorbique. See Sorb.]

(Chem.) Pertaining to, or obtained from, the rowan tree, or sorb; specifically, designating an acid, C?H?CO?H, of the acetylene series, found in the unripe berries of this tree, and extracted as a white crystalline substance.

Source: Webster's Revised Unabridged Dictionary (1913)