HyperDic: primary_quill

English > 1 sense of the expression *primary quill*:
NOUN	animal	primary quill, primary, primary feather	one of the main flight feathers projecting along the outer edge of a bird's wing

English > *primary quill*: 1 sense > noun 1, animal
Meaning	One of the main flight feathers projecting along the outer edge of a bird's wing.
Synonyms	primary, primary feather
Broader	flight feather, pinion, quill, quill feather	Any of the larger / larger wing or tail feathers of a bird