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Meaning of decalumen | Babel Free

Noun CEFR B2
ˈdɛkəluːmɪn

Definitions

A unit of luminous flux equal to ten lumens.

Equivalents

Français décalumen

Examples

“If the aquarium is placed where it receives insufficient daylight, artificial lighting by means of ordinary incandescent lamps should be employed. For good plant⟳ growth 2 decalumens of luminous flux per square decimetre of water surface […]”

CEFR level

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

See also

decamer decameride Decameron Decameter decamethonium decamethonium bromide

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