Defn: A river in the Nether World or infernal regions; also, the infernal regions themselves. By some of the English poets it was supposed to be a flaming lake or gulf. Shak.
ACHERONTIC
Ach`e*ron"tic, a.
Defn: Of or pertaining to Acheron; infernal; hence, dismal, gloomy; moribund.
A CHEVAL
A` che*val". [F., lit., on horseback.]
Defn: Astride; with a part on each side; — used specif. in designating the position of an army with the wings separated by some line of demarcation, as a river or road.
A position à cheval on a river is not one which a general willingly
assumes.
Swinton.
ACHIEVABLE
A*chiev"a*ble, a.
Defn: Capable of being achieved. Barrow.
ACHIEVANCE
A*chiev"ance, n. Etym: [Cf. OF. achevance.]
Defn: Achievement. [Obs.] Sir T. Elyot.