[plan-uh-sfeer, pley-nuh-] /ˈplæn əˌsfɪər, ˈpleɪ nə-/
a map of half or more of the celestial sphere with a device for indicating the part of a given location visible at a given time.
a projection or representation of the whole or a part of a sphere on a plane.
a projection or representation of all or part of a sphere on a plane surface, such as a polar projection of the celestial sphere onto a chart
late 14c., from Medieval Latin planisphaerium, from Latin planus (see plane (n.1)) + sphaera (see sphere (n.)).
[plangk] /plæŋk/ noun 1. a long, flat piece of timber, thicker than a board. 2. lumber in such pieces; . 3. something to stand on or to cling to for support. 4. any one of the stated principles or objectives comprising the political platform of a party campaigning for election: They fought for a plank […]
noun, Shipbuilding. 1. a floor made from sawed, straight-grained timber.
[plang-king] /ˈplæŋ kɪŋ/ noun 1. collectively, as in a floor. 2. the act of laying or covering with . [plangk] /plæŋk/ noun 1. a long, flat piece of timber, thicker than a board. 2. lumber in such pieces; . 3. something to stand on or to cling to for support. 4. any one of the […]
noun 1. (nautical) a plank or timber covering the upper ends of the frames of a wooden vessel