-扩展释义
词组
|noun|
1.a cluster of cells or an organ in the body that produces a substance (as saliva, sweat, or bile) to be used by the body or given off from it
2.a cell, group of cells, or organ of endothelial origin that selectively removes materials from the blood, concentrates or alters them, and secretes them for further use in the body or for elimination from the body
3.any of various animal structures (as a lymph node) suggestive of glands though not secretory in function
|noun (2)|
1.a device for preventing leakage of fluid past a joint in machinery
2.the movable part of a stuffing box by which the packing is compressed
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