/ Dictionary / Index C castellatus: Meaning and Definition of Find definitions for: cas•tel•la•tus Pronunciation: (kas"tl-ā'tus), [key] — adj. Meteorol. (formerly) castellanus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. castellated nut Castellón de la Plana Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language