/ Dictionary / Index O ookinesis: Meaning and Definition of Find definitions for: o•o•ki•ne•sis Pronunciation: (ō"u-ki-nē'sis, -kī-), [key] — n. Cell Biol. the series of nuclear changes occurring in the ovum during maturation and fertilization. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ooh oolachan Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language