ductless gland is a noun meaning "any of the glands of the endocrine system that secrete hormones directly into the bloodstream". It carries one recorded sense.
any of the glands of the endocrine system that secrete hormones directly into the bloodstream
Definitions, synonyms and semantic relations for ductless gland come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.