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Pronunciation varies by accent · noun
(biology) A behaviour, found in some cephalopods etc., in which bioluminescence is used to provide camouflage when viewed from below..
Use counterillumination when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Counterillumination means (biology) A behaviour, found in some cephalopods etc., in which bioluminescence is used to provide camouflage when viewed from below..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use counterillumination where its definition matches the intended context.
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