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diameter    音标拼音: [dɑɪ'æmətɚ]
n. 直径,径

直径,径

diameter
直径

diameter
直径

diameter
n 1: the length of a straight line passing through the center of
a circle and connecting two points on the circumference
[synonym: {diameter}, {diam}]
2: 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)

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]

89 Moby Thesaurus words for "diameter":
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


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  • What Is a Diameter How to Measure It? A Beginner’s Guide
    From clear definitions and real-life examples to FAQs and a quick quiz, explore everything you need to know about diameter in this guide
  • Diameter - Wikipedia
    In geometry, a diameter of a circle is any straight line segment that passes through the centre of the circle and whose endpoints lie on the circle It can also be defined as the longest chord of the circle
  • Diameter of a Circle - Definition, Examples | Diameter Formula
    Diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints lie on the circumference of a circle Learn how to find the diameter of a circle using radius, circumference, and area
  • Diameter of a Circle Calculator
    If you're wondering how to calculate the diameter of a circle, this diameter of a circle calculator is a perfect choice You will need either the radius, the circumference, or the area of a given circle for the calculations
  • DIAMETER Definition Meaning - Merriam-Webster
    The meaning of DIAMETER is a chord passing through the center of a figure or body How to use diameter in a sentence
  • Diameter Definition (Illustrated Mathematics Dictionary)
    Illustrated definition of Diameter: The distance from one point on a circle through the center to another point on the circle It is also the
  • Diameter - Math. net
    The diameter of a circle is a line segment that passes through the center of the circle and has endpoints on the circle Line segment AB above is a diameter for circle O since endpoints A and B lie on the circle and line segment AB passes through center O





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