Definify.com
Webster 1913 Edition
Teinoscope
Tei′no-scope
,Noun.
[Gr. [GREEK] to extend +
-scope
.] (Physics)
An instrument formed by combining prisms so as to correct the chromatic aberration of the light while linear dimensions of objects seen through the prisms are increased or diminished; – called also
prism telescope
. Sir D. Brewster.