What does "plexor" mean?

A hammer (or other instrument) used to test a person's reflexes.

What is a synonym for "plexor"?

Common synonyms include: percussor, plessor.

/ˈplɛksə/ noun

noun ·Rare ·Advanced level

Noun

1
A hammer (or other instrument) used to test a person's reflexes. archaic
"Crowded in amongst his pocket's pens was the rubber head of a diagnostic plexor."
2
(medicine) a small hammer with a rubber head used in percussive examinations of the chest and in testing reflexes wordnet

"Crowded in amongst his pocket's pens was the rubber head of a diagnostic plexor."

From Hellenistic Ancient Greek πλῆξις (plêxis, “stroke”) + -or, after flexor etc.