gland

1. N-COUNT A gland is an organ in the body which produces chemical substances for the body to use or get rid of. 腺[usu supp N]

...the hormones secreted by our endocrine glands. …我們的內(nèi)分泌腺分泌的荷爾矇。

2. N-COUNT a device that prevents leakage of fluid along a rotating shaft or reciprocating rod passing through a boundary between areas of high and low pressure. It often consists of a flanged metal sleeve bedding into a stuffing box 密封壓蓋