/ Dictionary / Index H helminthiasis: Meaning and Definition of Find definitions for: hel•min•thi•a•sis Pronunciation: (hel"min-thī'u-sis), [key] — n. Pathol. a disease caused by parasitic worms in the intestines. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: helminthiasis (Thesaurus) helminth helminthic Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language