These Close When You Wink, Blink or Sleep

This page is the CodyCross answer for the clue below from Time for a check-up, Group 1710, Puzzle 3 (Genetic Testing).

Question is: These Close When You Wink, Blink or Sleep

and the answer is: EYELIDS

Word Meaning:

EYELIDS — plural of eyelid

Definitions from Wiktionary.