/ Dictionary / Index E endoskeleton: Meaning and Definition of Find definitions for: en•do•skel•e•ton Pronunciation: (en"dō-skel'i-tn), [key] — n. Zool. the internal skeleton or framework of the body of an animal (opposed to exoskeleton). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: endoskeleton (Thesaurus) endoscopy endosmosis Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language