ONAGER
On"a*ger, n.; pl. L. Onagri, E. Onagers. Etym: [L. onager, onagrus,
Gr.
1. (Rom.Antiq.)
Defn: A military engine acting like a sling, which threw stones from a bag or wooden bucket, and was operated by machinery. Fairholt.
2. (Zoöl.)
Defn: A wild ass, especially the koulan.
ONAGGA
O*nag"ga, n. (Zoöl.)
Defn: The dauw.
ONAGRACEOUS; ONAGRARIEOUS On`a*gra"ceous, On`a*gra*ri"e*ous, a. Etym: [From NL. Onagra an old scientific name of the evening primrose (Enothera), fr. Gr. (Bot.)
Defn: Pertaining to, or resembling, a natural order of plants (Onagraceæ or Onagrarieæ), which includes the fuchsia, the willow- herb (Epilobium), and the evening primrose ().
ONANISM
O"nan*ism, n. Etym: [Onan (Gen. xxxviii. 9): cf. F. onanisme.]