'Diameter' definitions:
Definition of 'diameter'
(from WordNet)
noun
The length of a straight line passing through the center of a circle and connecting two points on the circumference [syn: diameter, diam]
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)
Definition of 'Diameter'
From: GCIDE
- Diameter \Di*am"e*ter\, n. [F. diam[`e]tre, L. diametros, fr. Gr. ?; dia` through + ? measure. See 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. [1913 Webster]
- 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. [1913 Webster]
- Note: In an elongated object the diameter is usually taken at right angles to the longer axis. [1913 Webster]
- 3. (Arch.) 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. [1913 Webster]
- Conjugate diameters. See under Conjugate. [1913 Webster]
Synonyms of 'diameter'
From: Moby Thesaurus
- air line,
- amplitude,
- area,
- axis,
- beeline,
- bigness,
- bisector,
- body,
- bore,
- boundary,
- breadth,
- bulk,
- caliber,
- center,
- chord,
- core,
- coverage,
- depth,
- diagonal,
- diaphragm,
- dimension,
- dimensions,
- direct line,
- directrix,
- divider,
- edge,
- equator,
- expanse,
- expansion,
- extension,
- extent,
- gauge,
- girth,
- great-circle course,
- greatness,
- halfway mark,
- heart,
- height,
- interior,
- kernel,
- largeness,
- length,
- line of demarcation,
- magnitude,
- mass,
- mean,
- measure,
- measurement,
- median,
- middle,
- midmost,
- midriff,
- midst,
- normal,
- nucleus,
- partition,
- perpendicular,
- proportion,
- proportions,
- radius,
- radius vector,
- range,
- reach,
- right line,
- scale,
- scope,
- secant,
- segment,
- semidiameter,
- shortcut,
- side,
- size,
- spread,
- straight,
- straight course,
- straight line,
- straight stretch,
- straightaway,
- streamline,
- tangent,
- thick,
- thick of things,
- transversal,
- vector,
- volume,
- waist,
- waistline,
- width,
- zone