Adjacent Words

Trajectory definitions

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Webster's 1828 Dictionary

TRAJECT'ORY, n. The orbit of a comet; the path described by a comet in its motion, which Dr. Halley supposes to be elliptical.

WordNet (r) 3.0 (2005)

n
1: the path followed by an object moving through space [syn: trajectory, flight]

Merriam Webster's

noun (plural -ries) Etymology: New Latin trajectoria, from feminine of trajectorius of passing, from Latin traicere to cause to cross, cross, from trans-, tra- trans- + jacere to throw — more at jet Date: 1696 1. the curve that a body (as a planet or comet in its orbit or a rocket) describes in space 2. a path, progression, or line of development resembling a physical trajectory <an upward career trajectory>

U.S. Military Dictionary

See ballistic trajectory.

Oxford Reference Dictionary

n. (pl. -ies) 1 the path described by a projectile flying or an object moving under the action of given forces. 2 Geom. a curve or surface cutting a system of curves or surfaces at a constant angle. Etymology: (orig. adj.) f. med.L trajectorius f. L traicere traject- (as TRANS-, jacere throw)

Webster's 1913 Dictionary

Trajectory Tra*ject"o*ry, n.; pl. Trajectories. [Cf. F. trajectoire.] The curve which a body describes in space, as a planet or comet in its orbit, or stone thrown upward obliquely in the air.

Collin's Cobuild Dictionary

(trajectories) 1. The trajectory of a moving object is the path that it follows as it moves. ...the trajectory of an artillery shell. N-COUNT: with supp 2. The trajectory of something such as a person's career is the course that it follows over time. ...a relentlessly upward career trajectory. N-COUNT: with supp

Moby Thesaurus

air lane, altitude peak, aphelion, apogee, astronomical longitude, automatic control, autumnal equinox, beat, blast-off, burn, burnout, ceiling, celestial equator, celestial longitude, celestial meridian, circle, circuit, colures, course, descent, ecliptic, end of burning, equator, equinoctial, equinoctial circle, equinoctial colure, equinox, flight, flight path, galactic longitude, geocentric longitude, geodetic longitude, great circle, heliocentric longitude, ignition, impact, itinerary, launch, lift-off, line, longitude, meridian, orbit, path, perigee, perihelion, period, primrose path, road, rocket launching, round, route, run, sea lane, shoot, shortcut, shot, small circle, solstitial colure, tour, track, trade route, traject, trajet, velocity peak, vernal equinox, walk, zodiac, zone