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in radiology, the plane which contains the central ray of a radiation beam.Medical dictionary. 2011.
Principal plane — Principal Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a… … The Collaborative International Dictionary of English
principal plane — pagrindinė plokštuma statusas T sritis fizika atitikmenys: angl. principal plane vok. Hauptebene, f rus. главная плоскость, f pranc. plan principal, m … Fizikos terminų žodynas
principal plane — pagrindinė plokštuma statusas T sritis Gynyba apibrėžtis Fotogrametrijoje – vertikali plokštuma, kurioje yra pagrindinis įžambiosios nuotraukos taškas, lęšio (fotoaparato) perspektyvinis centras ir antžeminis nadyras. atitikmenys: angl. principal … NATO terminų aiškinamasis žodynas
principal plane — A vertical plane that contains the principal point of an oblique photograph, the perspective center of the lens, and the ground nadir. It is the vertical plane containing the optical axis … Aviation dictionary
principal plane — A vertical plane which contains the principal point of an oblique photograph, the perspective center of the lens, and the ground nadir … Military dictionary
principal plane — noun : any of the planes perpendicular to the axis and passing through the principal points of an optical system * * * Optics. a plane that is perpendicular to the axis of a lens, mirror, or other optical system and at which rays diverging from a … Useful english dictionary
principal plane — Optics. a plane that is perpendicular to the axis of a lens, mirror, or other optical system and at which rays diverging from a focal point are deviated parallel to the axis or at which rays parallel to the axis are deviated to converge to a… … Universalium
principal plane of symmetry — a plane of symmetry in a crystal that includes two or more axes of symmetry … Useful english dictionary
Principal — Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a state; the… … The Collaborative International Dictionary of English
Principal axes of a quadric — Principal Prin ci*pal, a. [F., from L. principalis. See {Prince}.] 1. Highest in rank, authority, character, importance, or degree; most considerable or important; chief; main; as, the principal officers of a Government; the principal men of a… … The Collaborative International Dictionary of English
