WordReference Random House Unabridged Dictionary of American English © 2026
par•a•si•tol•o•gy
(par′ə sī tol′ə jē, -si-),USA pronunciation n.
par•a•si•to•log•i•cal
(par′ə sīt′l oj′i kəl),USA pronunciation adj.
par′a•si•tol′o•gist, n.
- Biologythe branch of biology dealing with parasites and the effects of parasitism.
- 1880–85; parasite + -o- + -logy
'parasitologist' also found in these entries (note: many are not synonyms or translations):