nutshell Meaning, Definition & Usage

  1. noun the shell around the kernel of a nut

WordNet

Nut"shell` noun
Definitions
  1. The shell or hard external covering in which the kernel of a nut is inclosed.
  2. Hence, a thing of little compass, or of little value.
  3. (Zoöl.) A shell of the genus Nucula. Macaulay.

Webster 1913