cham·o·mile or cam·o·mile (k?m??-m?l?, -m?l?)n.1. An aromatic perennial herb (Chamaemelum nobile) in the composite family, native to Europe and the Mediterranean region, having feathery foliage and flower heads with white rays and yellow centers.2. A similar, related Eurasian annual plant (Matricaria recutita).3. The dried flower heads of either one of these plants, used to make an herbal tea and yielding an oil used in commercial flavorings and perfumery.[Middle English camomille, from Old French, from Late Latin chamomilla, alteration of Latin chamaem?lon, from Greek khamaim?lon : khamai, on the ground; see dhghem- in Indo-European roots + m?lon, apple.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.chamomile (?kæm??ma?l) n (Plants) a variant spelling of camomileCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014cham?o?mile or cam?o?mile (?kæm ??ma?l, -?mil) n. 1. a composite plant, Chamaemelium nobile (or Anthemis nobilis), native to the Old World, having strongly scented foliage and white ray flowers with yellow centers used medicinally and as a tea. 2. any of several allied plants of the genera Matricaria and Tripleurospermum. [1350?1400; Middle English camomille