direct-vision spectroscope

noun Optics.

a simple spectroscope consisting of a collimating lens and an Amici prism.

Nearby words

  1. direct-grant school,
  2. direct-mail shot,
  3. direct-mailer,
  4. direct-reading,
  5. direct-vision prism,
  6. directed,
  7. directed angle,
  8. directed verdict,
  9. directed-energy device,
  10. directing

Origin of direct-vision spectroscope

First recorded in 1875–80 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019