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Webster 1913 Edition

Noun.

[L.

trajectio

a crossing over, transposition.]

The act of trajecting; a throwing or casting through or across; also, emission.

Boyle.

Transposition.

[R.]

Knatchbull.

Noun.

The act of casting or darting through.

Transportation.

Emission.

trajection ‎(plural trajections)

(archaic) The act of trajecting; a throwing or casting through or across; also, emission.
(archaic) transposition