1. 无管腺：Drug tolerance 药物耐受性 | Ductless gland 无管腺 | Duodenal gland 十二指肠腺

2. 内分泌腺：Glands 腺体 | Ductless gland 内分泌腺 | Mammary gland 乳腺

3. 无管腺,内分泌腺：ductless gastric fluid analysis == 无管胃液分析 | ductless gland == 无管腺,内分泌腺 | ductuli efferentes testis == 睾丸输出小管

noun

1. any of the glands of the endocrine system that secrete hormones directly into the bloodstream

Synonym: endocrine glandendocrine