the GNU version of the Collaborative International Dictionary of English
adj. Eating, or subsisting on, fish.
The Century Dictionary and Cyclopedia
Eating or subsisting on fish; fish-eating; piscivorous.
Word Usage
"If, on its coasts, the sea washes nothing but almost inaccessible rocks, let it remain barbarous and ichthyophagous: it will have a quieter, perhaps a better, and certainly a happier life."