/ Dictionary / Index C ceiba: Meaning and Definition of Find definitions for: cei•ba Pronunciation: (sā'bu or, for 2, sī'- Sp. thā'vä, sā'-), [key] — pl. -bas the silk-cotton tree, Ceiba pentandra. silk cotton; kapok. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ceiba (Thesaurus) cefoxitin ceil Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language