Liddell-Scott-Jones

χελώνιον (chelōnion) a lip ^G:N-N

χελώνιον-ιον, τό,

tortoise-shell, [Refs 4th c.BC+]

__2 crab's shell, [Refs 1st c.AD+]
__II arched part of the back, [Refs 2nd c.AD+]: plural, muscles of the back, probably to be read instead of χελύνια in [LXX]
__III part of a lock, [Refs 8th c.BC+]
__III.2 arch or bow for releasing the string of the stomach-bow, [Refs 2nd c.BC+]
__III.3 knob against which the butt-ends of the arms of a torsion-engine rest, [Refs]
__III.4 probably part of an irrigation machine, [Refs 2nd c.AD+]; part of a crane in which the axle turns, [Refs 1st c.BC+]

_{LSJ Scripture Refs: LXX.Deut.34.7}