squirmer vs wiggler

squirmer and wiggler both are nouns.

Word	Noun	Adjective	Verb	Adverb
squirmer	Yes	No	No	No
wiggler	Yes	No	No	No

As nouns, squirmer and wiggler are synonyms defined as:

Other synonyms of squirmer include wriggler.

squirmer (noun)	wiggler (noun)
one who can't stay still (especially a child)	terrestrial worm that burrows into and helps aerate soil; often surfaces when the ground is cool or wet; used as bait by anglers
	larva of a mosquito
	one who can't stay still (especially a child)