'Nutshell' definitions:

Definition of 'nutshell'

From: WordNet
noun
The shell around the kernel of a nut

Definition of 'Nutshell'

From: GCIDE
  • Nutshell \Nut"shell`\, n.
  • 1. The shell or hard external covering in which the kernel of a nut is inclosed. [1913 Webster]
  • 2. Hence, a thing of little compass, or of little value. [1913 Webster]
  • 3. (Zool.) A shell of the genus Nucula. [1913 Webster]
  • in a nutshell in a summarized and very abbreviated form; -- of statments, descriptions, reports, and other communications; as, to describe the convention in a nutshell.
  • To be in a nutshell or To lie in a nutshell,, to be within a small compass; to admit of very brief or simple determination or statement. "The remedy lay in a nutshell." --Macaulay. [1913 Webster +PJC]