direct-vision spectroscope
noun Optics.
a simple spectroscope consisting of a collimating lens and an Amici prism.
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Nearby words
- direct-grant school,
- direct-mail shot,
- direct-mailer,
- direct-reading,
- direct-vision prism,
- directed,
- directed angle,
- directed verdict,
- directed-energy device,
- directing
Origin of direct-vision spectroscope
First recorded in 1875–80
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019