/ Dictionary / Index C chiasmatypy: Meaning and Definition of Find definitions for: chi•as•ma•typ•y Pronunciation: (kī-az'mu-tī"pē), [key] — n. Genetics. the process of chiasma formation, which is the basis for crossing over. Cf. crossing over. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chiasma chiasmus Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language