A silverback is an adult male gorilla, especially a mountain gorilla, having a patch of silver hair on the back.
Silverbacks are seen as strong and important in their group.
Examples:
The silverback protects the group.
The silverback is the leader of the gorilla family.
The silverback has a lot of silver hair on his back.
The silverback is like the king of the gorillas.
The silverback is the biggest and strongest gorilla.
The silverback is very important to the other gorillas.