'Spyglass' definitions:

Definition of 'spyglass'

From: WordNet
noun
A small refracting telescope [syn: field glass, glass, spyglass]

Definition of 'Spyglass'

From: GCIDE
  • Spyglass \Spy"glass`\ (-gl[.a]s`), n. A small telescope for viewing distant terrestrial objects. [1913 Webster]