di·am·e·ter (d - m  -t r)n. 1. Abbr. d or diam. Mathematics a. A straight line segment passing through the center of a figure, especially of a circle or sphere, and terminating at the periphery. b. The length of such a segment. 2. Thickness or width. 3. A unit for measuring the magnifying power of a microscope lens or telescope, equal to the number of times an object's linear dimensions are apparently increased. [Middle English diametre, from Old French, from Latin diametrus, from Greek diametros (gramm  ), diagonal (line) : dia-, dia- + metron, measure; see m-2 in Indo-European roots.]di·am e·tral (-trl) adj. |
diameter
Noun
a. a straight line through the centre of a circle or sphere
b. the length of such a line [Greek dia- through + metron measure]
| diameter (d-m-tr) 1. A straight line segment that passes through the center of a circle or sphere from one side to the other. 2. The length of such a line segment. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  diameter - the length of a straight line passing through the center of a circle and connecting two points on the circumferencewindage - the space between the projectile of a smoothbore gun and the surface of the bore of the gun length - the linear extent in space from one end to the other; the longest dimension of something that is fixed in place; "the length of the table was 5 feet" |
| 2. | diameter - 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) straight line - a line traced by a point traveling in a constant direction; a line of zero curvature; "the shortest distance between two points is a straight line" |
Translations
n diameter [daiˈӕmitə]
(the length of) a straight line drawn from side to side of a circle, passing through its centre Could you measure the diameter of that circle? middellyn, deursnee قُطْر диаметър průměr diameter der Durchmesser διάμετρος diámetro diameeter, läbimõõt قطر halkaisija, läpimitta diamètre קוֹטֶר व्यास, मोटाई dijametar, promjer átmérő garis tengah þvermál diametro 直径 지름 diametras diametrs diameter middellijn diameter, tverrmål średnica diâmetro diametru диаметр priemer premer prečnik diameter เส้นผ่าศูนย์กลาง çap 直徑 діаметр; поперечник دائرے کا قطر đường kính 直径
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