O`don*tol"cae\, n. pl. [NL., from Gr. 'odoy`s, 'odo`ntos, a tooth + ? a furrow.] (Paleon.) An extinct order of ostrichlike aquatic birds having teeth, which are set in a groove in the jaw. It includes Hesperornis, and allied genera. See Hesperornis. [Written also Odontholcae, and Odontoholcae.]
Webster's Revised Unabridged Dictionary, © 1996, 1998 MICRA, Inc.
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