atony Meaning, Definition & Usage

  1. noun lack of normal muscular tension or tonus
    atonia; atonicity; amyotonia.

WordNet

At"o*ny noun
Etymology
Gr. slackness; priv. + tone, strength, to stretch: cf. F. atonie.
Definitions
  1. (Med.) Want of tone; weakness of the system, or of any organ, especially of such as are contractile.

Webster 1913