plexor vs plessor

plexor and plessor both are nouns.

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

As nouns, plexor and plessor are synonyms defined as:

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

Other synonyms of plexor include percussor.

plexor (noun)	plessor (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