WordReference Random House Unabridged Dictionary of American English © 2026
ich•thy•ol•o•gy
(ik′thē ol′ə jē),USA pronunciation n.
ich•thy•o•log•ic
(ik′thē ə loj′ik),USA pronunciation ich′thy•o•log′i•cal, adj.
ich′thy•o•log′i•cal•ly, adv.
ich′thy•ol′o•gist, n.
- Fishthe branch of zoology dealing with fishes.
- 1640–50; ichthyo- + -logy
ich′thy•ol′o•gist, n.
'ichthyologist' also found in these entries (note: many are not synonyms or translations):