a natural prolongation or projection from a part of an organism either animal or plant
a part that is joined to something larger
双语例句
1. Their bodies have appendages which look like wings.
他们的身体拥有像翅膀一样的附属肢体。
《柯林斯英汉双解大词典》
2. In 1919, for example, a humpback whale with a pair of leglike appendages over a metre long, complete with a full set of limb bones, was caught off Vancouver Island in Canada.