IPA: /hɛlˈmɪnθiəs/
KK: /hɛlˈmɪnθiəs/
A disease that occurs when a person or animal is infected by parasitic worms.
The doctor diagnosed her with helminthiasis after she showed symptoms of a worm infection.
Helminthiasis is formed from "helminth" (from Greek "helminthos", meaning worm) and "-iasis" (from Greek "iasis", meaning a pathological condition). The term refers to a disease condition caused by parasitic worms.
Think of 'helminth' meaning 'worm' and '-iasis' indicating a disease condition — so helminthiasis refers to a disease caused by worms.