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os•ti•um



Pronunciation: (os'tē-um), [key]
n.,
pl. -ti•aPronunciation: (-tē-u). [key]

1. Anat., Zool.a small opening or orifice, as at the end of the oviduct.
2. Zool.one of the tiny holes in the body of a sponge.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

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