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pro•sto•mi•um



Pronunciation: (prō-stō'mē-um), [key]
n.,
pl. -mi•aPronunciation: (-mē-u). [key]

the unsegmented, preoral portion of the head of certain lower invertebrates.

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

prostomiateprostoon

 

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