gland
Used as a standalone noun or as a suffix in compound anatomical terms (e.g., 甲状腺, 涙腺).
The thyroid gland is a gland located in the front of the neck.
My tear glands loosened and tears came out.
prostate gland; prostate
mammary gland
tear gland; lacrimal gland
tonsil · tonsillitis
The kanji 腺 is a Japanese coinage (kokuji) combining 肉 (flesh) and 泉 (spring), referring to a secreting organ. The reading せん is the on'yomi of 泉.