fish eye

noun — 2 senses

fish eye

noun

1

Alternative Alternative form of fisheye.

2

Used other than figuratively or idiomatically: see fish, eye.

Fish eyes are specially suited for seeing underwater.2008, Sara Swan Miller, All Kinds of Eyes, Marshall Cavendish, →ISBN, page 13:

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.