Aration
(A*ra"tion) n. [L. aratio, fr. arare to plow.] 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. [LL. aratorius: cf. F. aratoire.] Contributing to tillage.
Araucaria
(||Ar`au*ca"ri*a) n. [Araucania, a territory south of Chili.] (Bot.) A genus of tall conifers of
the pine family. The species are confined mostly to South America and Australia. The wood cells differ
from those of other in having the dots in their lateral surfaces in two or three rows, and the dots of contiguous
rows alternating. The seeds are edible.
Araucarian
(Ar`au*ca"ri*an) a. Relating to, or of the nature of, the Araucaria. The earliest conifers in
geological history were mostly Araucarian. Dana.
Arbalest
(Ar"ba*lest Ar"ba*list) n. [OF. arbaleste, LL. arbalista, for L. arcuballista; arcus bow + ballista
a military engine. See Ballista.] (Antiq.) A crossbow, consisting of a steel bow set in a shaft of wood,
furnished with a string and a trigger, and a mechanical device for bending the bow. It served to throw
arrows, darts, bullets, etc. [Written also arbalet and arblast.] Fosbroke.
Arbalester
(Ar"ba*lest`er Ar"ba*list`er) n. [OF. arblastere, OF. arbalestier. See Arbalest.] A crossbowman.
[Obs.] Speed.
Arbiter
(Ar"bi*ter) n. [L. arbiter; ar- (for ad) + the root of betere to go; hence properly, one who comes
up to look on.]
1. A person appointed, or chosen, by parties to determine a controversy between them.
In modern usage, arbitrator is the technical word.
2. Any person who has the power of judging and determining, or ordaining, without control; one whose
power of deciding and governing is not limited.
For Jove is arbiter of both to man.
Cowper.
Syn. — Arbitrator; umpire; director; referee; controller; ruler; governor.
Arbiter
(Ar"bi*ter), v. t. To act as arbiter between. [Obs.]
Arbitrable
(Ar"bi*tra*ble) a. [Cf. F. arbitrable, fr. L. arbitrari. See Arbitrate, v. t.] Capable of being
decided by arbitration; determinable. [Archaic] Bp. Hall.
Arbitrage
(Ar"bi*trage) n. [F., fr. arbiter to give judgment, L. arbitrari.]
1. Judgment by an arbiter; authoritative determination. [Archaic]
2. (Com) A traffic in bills of exchange (see Arbitration of Exchange); also, a traffic in stocks which bear
differing values at the same time in different markets.
Arbitral
(Ar"bi*tral) a. [L. arbitralis.] Of or relating to an arbiter or an arbitration. [R.]
Arbitrament
(Ar*bit"ra*ment) n. [LL. arbitramentum.]
1. Determination; decision; arbitration.
The arbitrament of time.
Everett.
Gladly at this moment would MacIvor have put their quarrel to personal arbitrament.
Sir W. Scott.
