/ Dictionary / Index T transplanetary: Meaning and Definition of Find definitions for: trans•plan•e•tar•y Pronunciation: (trans-plan'i-ter"ē), [key] — adj. farther from the sun than a given planet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. transplacental transplant Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language