/ Dictionary / Index O osteogenesis imperfecta: Meaning and Definition of Find definitions for: osteogen'esis im•per•fec'ta Pronunciation: (im"pur-fek'tu), [key] — Pathol. Pathol. a rare hereditary disease in which abnormal connective tissue development leads to fragile bones subject to fracture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. osteogenesis osteogenic Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language