genus Onopordum
— Noun
– English
～ a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers
genus Onosmodium
— Noun
– English
～ a genus of North American perennial herbs of the family Boraginaceae
growth-onset diabetes
— Noun
– English
～ severe diabetes mellitus with an early onset; characterized by polyuria and excessive thirst and increased appetite and weight loss and episodic ketoacidosis; diet and insulin injections are required to control the disease
get onto
— Verb
– English
～ understand, usually after some initial difficulty; "She didn't know what her classmates were plotting but finally caught on"
genus Onychium
— Noun
– English
～ small terrestrial ferns of Old World tropics and subtropics: clawed ferns; sometimes placed in family Cryptogrammataceae