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"Section M, N, and O"

They are supposed to be connected with the formation of
dentine.


2. (Zoöl.) One of the cells which
secrete the chitinous teeth of Mollusca.



||O*don`to*ce"te (?), n. pl. [NL., from
Gr. 'odoy`s, 'odo`ntos, a tooth + &?; a whale.]
(Zoöl.) A subdivision of Cetacea, including the
sperm whale, dolphins, etc.; the toothed whales.


O`don*tog"e*ny (?), n. [Odonto-
+ root of Gr. &?; to be born: cf: F. odontogénie.]
(Physiol.) Generetion, or mode of development, of the
teeth.


O*don"to*graph (?), n. [Odonto-
+ -graph.] An instrument for marking or laying off the
outlines of teeth of gear wheels.


O*don`to*graph"ic (?), a. Of or
pertaining to odontography.


O`don*tog"ra*phy (?), n. A
description of the teeth.


O*don"toid (?), a. [Gr. &?;;
'odoy`s, 'odo`ntos, a tooth + &?; form: cf.F.


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