/ Dictionary / Index L lagena: Meaning and Definition of Find definitions for: la•ge•na Pronunciation: (lu-jē'nu), [key] — pl. -nae an outpocketing of the saccule of birds, reptiles, and bony fishes corresponding to the cochlear duct of mammals. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. lagen lageniform Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language