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decalumen. In DICTIOUS you will not only get to know all the dictionary meanings for the word
decalumen, but we will also tell you about its etymology, its characteristics and you will know how to say
decalumen in singular and plural. Everything you need to know about the word
decalumen you have here. The definition of the word
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English
Etymology
From deca- + lumen.
Pronunciation
Noun
decalumen (plural decalumens)
- A unit of luminous flux equal to ten lumens.
1956, C. van Duijn, Diseases of Fishes, page 149: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 […]