/ Dictionary / Index A Agrippina II: Meaning and Definition of Find definitions for: Ag•rip•pi•na II Pronunciation: (ag"ru-pī'nu, -pē'-), [key] — a.d. 16?–59?, mother of the Roman emperor Nero and sister of Caligula. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Agrippa Agrius Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language