/ Dictionary / Index A Alexandrinus: Meaning and Definition of Find definitions for: Al•ex•an•dri•nus Pronunciation: (al"ig-zan-drē'nus, -drī'-, -zän-), [key] — n. the Greek uncial codex, dating from the early 5th century a.d., originally containing the complete text of the Greek Old and New Testaments. Cf. codex. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Alexandrine rat alexandrite Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language