kəˈlāzēən, -ēˌän noun
( plural chala·zia -zēə)
Etymology: New Latin, from Greek chalazion small lump, chalazion, diminutive of chalaza hailstone, hard lump, chalazion — more at chalaza
: a small circumscribed tumor of the eyelid formed by retention of the Meibomian-gland secretions and sometimes accompanied by inflammation