diameter
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.di·am·e·ter
noun \dī-ˈa-mə-tər\Definition of DIAMETER
1
: a chord passing through the center of a figure or body
2
: the length of a straight line through the center of an object
3
: a unit of enlargement used with a number to indicate magnification by a lens or optical system <an object one millimeter wide magnified 40 diameters appears 40 millimeters wide>
— di·am·e·tral \-ˈa-mə-trəl\ adjective
See Examples of DIAMETER
- The dotted line indicates the diameter of the circle.
- What is the diameter of the tree trunk?
- Dig a hole that's two feet deep and three feet in diameter.
Origin of DIAMETER
Middle English diametre, from Middle French, from Latin diametros, from Greek, from dia- + metron measure — more at measure
First Known Use: 14th century
Other Mathematics and Statistics Terms
Rhymes with DIAMETER
di·am·e·ter
noun \dī-ˈam-ət-ər\ (Medical Dictionary)Medical Definition of DIAMETER
1
: a unit of magnification for an optical instrument equal to the number of times the linear dimensions of an object are apparently increased <a microscope magnifying 60 diameters>
2
: one of the maximal breadths of a part of the body <the transverse diameter of the inlet of the pelvis>
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