IPA: /ˈaɪˌstɔːk/
KK: /ˈaɪˌstɔk/
A flexible, stalk-like part found in some crustaceans, like crabs and shrimp, that holds an eye at its end.
The crab used its eyestalks to look around for predators.
Eyestalk → The word is formed from "eye" (from Old English "ēage", meaning the organ of sight) and "stalk" (from Old English "stalka", meaning a stem or support). An eyestalk refers to a stalk or stem that supports an eye, typically seen in certain animals like crustaceans.
Think of an 'eye' being supported by a 'stalk' — that's why an eyestalk is a structure that holds an eye.