O`don*tol"cae (?), n. pl. [NL., from Gr. , , 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 1913.