pair of tweezers vs pincer

pair of tweezers and pincer both are nouns.

Word	Noun	Adjective	Verb	Adverb
pair of tweezers	Yes	No	No	No
pincer	Yes	No	No	No

As nouns, pair of tweezers and pincer are synonyms defined as:

pair of tweezers and pincer: a hand tool for holding consisting of a compound lever for grasping

Other synonyms of pair of tweezers include pair of pincers, tweezer.

pair of tweezers (noun)	pincer (noun)
a hand tool for holding consisting of a compound lever for grasping	a grasping structure on the limb of a crustacean or other arthropods
	a hand tool for holding consisting of a compound lever for grasping