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Meaning of selenium eye | Babel Free

Noun CEFR B2

Definitions

A device consisting of a closeable ball of blackened wood surrounding a glass lens that focuses light onto a selenium cell attached to a galvanometer; used by astronomers to measure the light variations of a heavenly body.

historical

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

selenium hexafluoride selenium yeast seleniuret seleniuretted hydrogen selenizone selenoaldehyde

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