diameter, diam
(noun) the length of a straight line passing through the center of a circle and connecting two points on the circumference
diameter
(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)
Source: WordNet® 3.1
diameter (plural diameters)
(geometry) Any straight line between two points on the circumference of a circle that passes through the centre/center of the circle.
(geometry) The length of such a line.
(geometry) The maximum distance between any two points in a metric space
(graph theory) The maximum eccentricity over all vertices in a graph.
• Demetria, diametre, diatreme
Source: Wiktionary
Di*am"e*ter, n. Etym: [F. diamètre, L. diametros, fr. Gr. Meter.]
1. (Geom.) (a) 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. (b) A diametral plane.
2. The length of a straight line through the center of an object from side to side; width; thickness; as, the diameter of a tree or rock.
Note: In an elongated object the diameter is usually taken at right angles to the longer axis.
3. (Arch.)
Definition: 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. Conjugate diameters. See under Conjugate.
Source: Webster’s Unabridged Dictionary 1913 Edition
8 February 2025
(noun) the group of people comprising the government of a sovereign state; “the state has lowered its income tax”
Coffee dates back to the 9th century. Goat herders in Ethiopia noticed their goats seem to be “dancing” after eating berries from a particular shrub. They reported it to the local monastery, and a monk made a drink out of it. The monk found out he felt energized and kept him awake at night. That’s how the first coffee drink was born.
