/ Dictionary / Index L locoism: Meaning and Definition of Find definitions for: lo•co•ism Pronunciation: (lō'kō-iz"um), [key] — n. Vet. Pathol. a disease chiefly of sheep, horses, and cattle, caused by the eating of locoweed and characterized by weakness, impaired vision, irregular behavior, and paralysis. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: locoism (Thesaurus) Locofocoism locoman Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language