1. (n.) The path described by a heavenly body in its periodical revolution around another body; as, the orbit of Jupiter, of the earth, of the moon.

2. (n.) An orb or ball.

3. (n.) The cavity or socket of the skull in which the eye and its appendages are situated.

4. (n.) The skin which surrounds the eye of a bird.

Earth insertion LEM LM O air lane ambit annular muscle annulus aphelion apogee area arena areola astronomical longitude attitude-control rocket aureole autumnal equinox bailiwick ball ballistic capsule balloon beat bladder blob boll bolus border borderland bubble bulb bulbil bulblet burn capsule celestial equator celestial longitude celestial meridian chaplet circle circling circuit circuiteer circuition circuitousness circuitry circularity circulate circulation circumambience circumambiency circumambulate circumambulation circumference circumflexion circumlocution circummigrate circummigration circumnavigate circumnavigation circumvent circus close the circle closed circle colures come full circle compass constituency corona coronet course crown cycle deep-space ship demesne department describe a circle deviance deviancy deviation deviousness diadem digression discipline discus disk docking docking maneuver domain dominion ecliptic ellipsoid encircle encompass equator equinoctial equinoctial circle equinoctial colure equinox eternal return excursion excursus extension extent fairy ring ferry rocket field flank flight path footing fuel ship full circle galactic longitude garland geocentric longitude geodetic longitude geoid girdle girdle the globe globe globelet globoid globule glomerulus glory go about go around go round go the round gob gobbet great circle gyre gyring halo heliocentric longitude hemisphere indirection injection insertion itinerary judicial circuit jurisdiction knob knot lap lasso line logical circle longitude loop looplet lunar excursion module lunar module magic circle make a circuit manned rocket march meandering meridian module moon ship multistage rocket noose oblate spheroid orb orbiting orblet pale parking orbit path pellet perigee perihelion period precinct primrose path prolate spheroid province purview radius reach realm reentry revolution revolve ring road rocket rondelle rondure round round trip roundaboutness roundel rounding rounds route run saucer scope sea lane shortcut shuttle rocket skirt small circle soft landing solstitial colure space capsule space docking space rocket spacecraft spaceship sphere sphere of influence spheroid spherule sphincter spiral spiraling stamping ground subdiscipline surround sweep territory tour track trade route traject trajectory trajet turf turn turning vantage vernal equinox vicious circle walk wheel wheeling wreath zodiac zone