sailing on a course plotted without reference to the curvature of the earth.
(nautical) navigation without reference to the earth’s curvature Compare plain sailing
[pleyn-sahyd] /ˈpleɪnˌsaɪd/ noun 1. the area on either side of an airplane.
- Plane spotter
noun 1. a person who observes, photographs, and catalogues aircraft as a hobby
- Plane surveying
noun 1. the surveying of areas of limited size, making no corrections for the earth’s curvature
- Plane suture
plane suture n. A simple firm apposition of two smooth surfaces of bones, with no overlap. Also called harmonic suture.