noun. undefined

noun. A straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the periphery.

noun. The length of such a segment.

noun. Thickness or width.

noun. A unit of magnification equal to the number of times an object's linear dimensions is increased by the magnifying apparatus.

noun. The diameter (see def. 2) of the object observed, taken as a convenient measure of linear magnification used in micros-copy and in telescopic work.

noun. In geometry, a chord of a circle or a sphere which passes through its center; in general

noun. a chord of a conic cutting it at points tangents to which are parallel;

noun. a line intersecting a quadric surface at points where the tangent planes are parallel.

noun. The length of a diameter; the thickness of a cylindrical or spherical body as measured, in the former case on a diameter of a cross-section made perpendicular to the axis, and in the latter on a line passing through the center: as, a tree two feet in diameter; a ball three inches in diameter.

noun. undefined

noun. Any right line passing through the center of a figure or body, as a circle, conic section, sphere, cube, etc., and terminated by the opposite boundaries; a straight line which bisects a system of parallel chords drawn in a curve.

noun. A diametral plane.

noun. The length of a straight line through the center of an object from side to side; width; thickness.

noun. The distance through the lower part of the shaft of a column, used as a standard measure for all parts of the order. See Module.

noun. See under Conjugate.

noun. Any straight line between two points on the circumference of a circle that passes through the centre/center of the circle.

noun. The length of such a line.

noun. The maximum distance between any two points in a metric space

noun. The maximum eccentricity over all vertices in a graph.

noun. the length of a straight line passing through the center of a circle and connecting two points on the circumference

noun. a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface)

"Then, a line of tiny holes, less than one-millionth of a meter in diameter, is punched into the metal, spaced five micrometers apart."

apparent diameter of a heavenly body  biparietal diameter  circumference  coccygeopubic diameter  conjugate diameter of the pelvis  

diametric  diametrically  semidiameter  

straight line  

parameter  

altitude  angle  axis  circumference  density  

air line  amplitude  area  axis  beeline  

module