Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. 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

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. An optical instrument invented by Sir David Brewster, consisting of two prisms so combined as to correct the chromatic aberration, while the dimensions of objects seen through them are increased or decreased in the plane of refraction.

Etymologies

Ancient Greek τείνω ("I extend") + -scope. (Wiktionary)

Examples

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