Meaning of acmesthesia

ac•mes•the•sia

Pronunciation: (ak"mus-thē'zhu, -zhē-u, -zē-u), [key]
— n. Psychol.
  1. awareness of sharp points through the sense of touch without experiencing pain.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.