Polemoscope

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Polemoscope \Po*lem"o*scope\, n. [Gr. ? war + -scope: cf. F.
     pol['e]moscope.]
     An opera glass or field glass with an oblique mirror arranged
     for seeing objects that do not lie directly before the eye;
     -- called also {diagonal opera glass}, or {side opera glass}.
     [1913 Webster]