ARAPAIMA
A`ra*pai"ma, n. Etym: [Prob. native name.] (Zoöl.)
Defn: A large fresh-water food fish of South America.
ARARA
A*ra"ra, n. Etym: [Native name.] (Zoöl.)
Defn: The palm (or great black) cockatoo, of Australia (Microglossus aterrimus).
ARAROBA
Ar`a*ro"ba, n. [Tupi.]
1. Goa powder.
2. A fabaceous tree of Brazil (Centrolobium robustum) having handsomely striped wood; —called also zebrawood.
ARATION
A*ra"tion, n. Etym: [L. aratio, fr. arare to plow.]
Defn: Plowing; tillage. [R.] Lands are said to be in a state of aration when they are under tillage. Brande.
ARATORY
Ar"a*to*ry, a. Etym: [LL. aratorius: cf. F. aratoire.]