plessor vs percussor

plessor and percussor both are nouns.

Word	Noun	Adjective	Verb	Adverb
plessor	Yes	No	No	No
percussor	Yes	No	No	No

As nouns, plessor and percussor are synonyms defined as:

plessor and percussor: (medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes

Other synonyms of plessor include plexor.

plessor (noun)	percussor (noun)
(medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes	(medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes