the path accompanied by an object moving through room
- The curve which a body describes in room as a planet or comet in its orbit or stone thrown up obliquely floating around
- The bend which a body defines in space, as a planet or comet in its orbit, or rock tossed up obliquely floating around.
"path described by a human anatomy going intoxicated by offered causes," 1690s, from contemporary Latin trajectorium, from trajectorius "of or regarding putting around," from Latin traiectus "thrown over or across," past participle of traicere "throw around, take around," from Latin trans- "across" (see trans-) + icere, incorporating form of iacere "to put" (see jet (v.)). Middle French and Center English had trajectorie as "end of a funnel," from Latin traiectorium.
(n.) The bend which a body describes in space, as a planet or comet with its orbit, or stone tossed up obliquely floating around.
Ingalls, U.S.A., for approximating to a high angle trajectory in a single arc, which assumes that the mean density of the air may be taken as the density at two-thirds of the estimated height of the vertex; the rule is founded on the fact that in an unresisted parabolic trajectory the average height of the shot is two-thirds the height of the vertex, as illustrated in a jet of water, or in a stream of bullets from a Maxim gun.