1. [ noun ] (astronomy,transportation) the (usually elliptical) path described by one celestial body in its revolution about another
Synonyms: celestial_orbit

"he plotted the orbit of the moon"

Related terms: path geostationary_orbit periapsis apoapsis
2. [ verb ] move in an orbit, as of celestial bodies
Synonyms: revolve

: "The moon orbits around the Earth" "The planets are orbiting the sun"

Related terms: circle retrograde satellite rotation
3. [ noun ] a particular environment or walk of life
Synonyms: area field sphere domain arena

"his social sphere is limited" "it was a closed area of employment" "he's out of my orbit"

Related terms: environment front kingdom province political_arena preserve lap distaff
4. [ noun ] an area in which something acts or operates or has power or control
Synonyms: range scope reach compass ambit

: "the range of a supersonic jet" within the scope of an investigation" "outside the reach of the law" "in the political orbit of a world power"

Related terms: extent horizon sweep spectrum gamut palette confines approximate_range latitude contrast internationality compass
5. [ noun ] (transportation) the path of an electron around the nucleus of an atom
Synonyms: electron_orbit
Related terms: path
6. [ noun ] (anatomy,zoology) the bony cavity in the skull containing the eyeball
Synonyms: eye_socket cranial_orbit orbital_cavity
Related terms: cavity skull frontal_bone lacrimal_bone
Similar spelling:   orbiter