[ben.zo.in] n [MF benjoin, fr. Catal benjui, fr. Ar luban jawi, lit., frankincense of Java] (1562) 1: a hard fragrant yellowish balsamic resin from trees (genus Styrax) of southeastern Asia used esp. in medication, as a fixative in perfumes, and as incense
2: a white crystalline hydroxy ketone made from benzaldehyde