[cham.o.mile] n [ME camemille, fr. ML camomilla, modif. of L chamaemelon, fr. Gk chamaimelon, fr. chamai + melon apple] (13c) 1: a composite herb (Chamaemelum nobile syn. Anthemis nobilis) of Europe and No. Africa with strong-scented foliage and flower heads that contain a bitter medicinal substance
2: any of several composite plants (genera Matricaria and Anthemis) related to chamomile; esp: a Eurasian herb (M. recutita syn. M. chamomilla) naturalized in No. America