plane of section
111blade section — noun : a cross section of a propeller blade in a plane parallel to that containing the axis of rotation …
112golden section — Fine Arts, Math. a ratio between two portions of a line, or the two dimensions of a plane figure, in which the lesser of the two is to the greater as the greater is to the sum of both: a ratio of approximately 0.618 to 1.000. Also called golden… …
113longitudinal section — the representation of an object as it would appear if cut by the vertical plane passing through the longest axis of the object. * * * …
114oblique section — a representation of an object as it would appear if cut by a plane that is other than parallel or perpendicular to its longest axis. * * * …
115conic section — noun Any of the four distinct shapes that are the intersections of a cone with a plane, namely the circle, ellipse, parabola and hyperbola. Syn: conic …
116conic section — noun the figure of a circle, ellipse, parabola, or hyperbola formed by the intersection of a plane and a circular cone …
117conic section — con′ic sec′tion n. math. a curve formed by the intersection of a plane with a right circular cone; an ellipse, a circle, a parabola, or a hyperbola Also called conic 2) • Etymology: 1655–65 …
118golden section — gold′en sec′tion n. math. fia a ratio between two portions of a line, or the two dimensions of a plane figure, in which the lesser of the two is to the greateras the greater is to the sum of both: a ratio of approximately 0.618 to 1.000 …
119longitudinal section — longitu′dinal sec′tion n. sur the representation of an object as it would appear if cut by the vertical plane passing through the longest axis of the object …
120conic section — /kɒnɪk ˈsɛkʃən/ (say konik sekshuhn) noun Mathematics any curve formed by the intersection of a plane with a right circular cone; an ellipse, a circle, a parabola, or a hyperbola …
