Noun
An adolescent male gorilla or chimpanzee.
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More examples (1)
The author worked with two main study groups of gorilla in that region. Each contained a fully mature male (silverback), who was the obvious leader of the group, and a younger male of around 9 years of age (blackback), who had not yet assumed full adult morphology.
The second-ranking silverback is also a possible sire in the sixth case, although three other lower-ranking blackback males were also not excluded.
The great black-backed gull.
Usage- UK usage