(n)any of several cytologic smears obtained from different parts of the alimentary tract; obtained by specialized lavage techniques and used mainly to diagnose cancer in those parts
The Collaborative International Dictionary of English (GCIDE) v.0.53Collaborative International Dictionary (GCIDE)
a. [ L. alimentarius, fr. alimentum: cf. F. alimentaire. ] Pertaining to aliment or food, or to the function of nutrition; nutritious; alimental; as, alimentary substances. [ 1913 Webster ]
Alimentary canal, the entire channel, extending from the mouth to the anus, by which aliments are conveyed through the body, and the useless parts ejected. [ 1913 Webster ]