/ Dictionary / Index A anaplasia: Meaning and Definition of Find definitions for: an•a•pla•sia Pronunciation: (an"u-plā'zhu, -zhē-u, -zē-u), [key] — n. Pathol. the loss of structural differentiation within a cell or group of cells. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: anaplasia (Thesaurus) anaphylaxis anaplasmosis Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language