helco-combining form of Gr. ἕλκος ‘festering wound, ulcer’, used to form technical terms with sense ‘ulcer’: as in ˈhelcoida., resembling an ulcer (Mayne Expos.Lex. 1854). helˈcology, the doctrine of, or a treatise on ulcers (Mayne). ‖ helˈcoma, an old term for ulceration (Syd. Soc.Lex.). helcophˈthalmia, -my, ophthalmia with ulceration (Mayne). ˈhelcoplasty[Gr. πλαστ-ός formed], the operation of grafting on an ulcer a piece of healthy skin from another part or person (Dunglison Med.Dict.). ‖ helˈcosis[Gr. ἕλκωσις], ulceration. helcotic|hɛlˈkɒtɪk|a.[Gr. ἑλκωτικός ulcerating], of or belonging to ulceration (Mayne).1876Wagner's Gen.Pathol. 283 The doctrine of ulcers belongs for the most part to special surgery, where helcology has attained to great perfection.