a. or a. pron. Each. [ Obs. ] Chaucer. [ 1913 Webster ]
n. [ F., fr. échelle ladder, fr. L. scala. ]
Echelon lens (Optics),
v. t. (Mil.) To place in echelon; to station divisions of troops in echelon. [ 1913 Webster ]
v. i. To take position in echelon. [ 1913 Webster ]
Change direction to the left, echelon by battalion from the right. Upton (Tactics). [ 1913 Webster ]
n. a natural family of fishes having a sucking disk on the head for clinging to other fishes and to ships.
n. the type genus of the