'Plessimeter' definitions:

Definition of 'plessimeter'

(from WordNet)
noun
A small thin metal plate held against the body and struck with a plexor in percussive examinations [syn: pleximeter, plessimeter]

Definition of 'Plessimeter'

From: GCIDE
  • Plessimeter \Ples*sim"e*ter\, n. See Pleximeter. [1913 Webster]