/ Dictionary / Index I interacinous: Meaning and Definition of Find definitions for: in•ter•ac•i•nous Pronunciation: (in"tur-as'u-nus), [key] — adj. Anat. situated between the acini of a gland or lung. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. interabang interact Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language