/ Dictionary / Index A adactylous: Meaning and Definition of Find definitions for: a•dac•ty•lous Pronunciation: (ā-dak'tl-us), [key] — adj. Zool. having no fingers or toes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adactylous (Thesaurus) ad absurdum Adad Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language