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Definition of trajectory:

  1. The curve which a body describes in space, as a planet or comet in its orbit, or stone thrown upward obliquely in the air.


direction, axis, inclined plane, diagonal, outline, development, a giant step/leap/stride, the march of something, horizontal, escape, line, maturation, arc, history, flight of steps, chord, advance, diameter, progress, advancement, momentum, flight, flying, flight of stairs, curvature.

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