counterillumination
A behaviour, found in some cephalopods etc., in which bioluminescence is used to…A behaviour, found in some cephalopods etc., in which bioluminescence is used to provide camouflage when viewed from below.
Meaning
1 senses(uncountable)A behaviour, found in some cephalopods etc., in which bioluminescence is used to provide camouflage when viewed from below.
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable