helioscope

English

Etymology

From helio- +‎ -scope.

Pronunciation

  • Audio (US):(file)

Noun

helioscope (plural helioscopes)

  1. (astronomy) An apparatus for viewing the Sun without harming the eye, by means of an optical filter that attenuates most of sunlight while allowing only a small amount of the solar radiation.

Derived terms

Translations

This article is issued from Wiktionary. The text is available under Creative Commons Attribution-Share Alike 4.0 unless otherwise noted. Additional terms may apply for the media files.