/ Dictionary / Index C castellanus: Meaning and Definition of Find definitions for: cas•tel•la•nus Pronunciation: (kas"tl-ā'nus), [key] — adj. Meteorol. (of a cloud) having small turrets. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Castellanos castellany Related Content Daily Word Quiz: eccentric Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language