flinch has definitions from the fields of biology,medicine
1
[ verb ] draw back, as with fear or pain

Examples

"she flinched when they showed the slaughtering of the calf"

Used in print

(Richard Ferber, Bitter Valley....)

He took it without flinching .

Related terms

move shrink_back wince

2
[ noun ] (biology,medicine) a reflex response to sudden pain

Synonyms

wince

Related terms

startle

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