/ Dictionary / Index L limulus: Meaning and Definition of Find definitions for: lim•u•lus Pronunciation: (lim'yu-lus), [key] — pl. -li a crab of the genus Limulus; horseshoe crab. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: limulus (Thesaurus) limp-wristed limy Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language