In the restricted three-body problem, a curved path around a Lagrangian point that lies entirely in the plane of the two primary bodies.

A temporary orbit used during the launch of a satellite or space probe, before the final trajectory is set.

(anatomy) A process of the palatine bone that forms part of the floor of the orbit.

(anatomy) Either of two openings transmitting nerves and blood vessels to or from the orbit.

(physics, orbital mechanics) A periodic, three-dimensional orbit about any one of the Lagrange points L₁, L₂ or L₃ of a two-body gravitational system.

(astrodynamics) A sun-synchronous orbit.

A theoretical type of orbit which goes in a straight-line, up and down; with 100% orbital eccentricity (eccentricity=1.0); the orbital path passing through the center-of-mass of the primary mass being orbited; having an periapsis at 0, and two apoapsides, as both arms going out from the periastron are equidistant; where the orbital ellipse has zero width semi-minor axis/minor axis, and the path of the ellipse is the same as the major axis.

plural of orbital element

(astronomy) One of the parameters needed to uniquely specify a particular orbit.

(physics) An orbital formed by the combination of multiple atomic orbitals on the same atom