Definition of DIAMETER

diameter

Plural: diameters

Noun

  • the length of a straight line passing through the center of a circle and connecting two points on the circumference
  • 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)
  • Any straight line between two points on the circumference of a circle that passes through the centre/center of the circle; a chord that passes through the center of the circle.
  • The length of such a line.
  • The maximum distance between any two points in a metric space.
  • The maximum eccentricity over all vertices in a graph.
  • pl. -S a straight line passing through the center of a circle and ending at the periphery

Origin / Etymology

From Old French diametre (French diamètre), from Latin diametrus, from Ancient Greek διάμετρος (diámetros) (γραμμή (grammḗ)) (diametros grammē, “line measuring across”), from διά (diá, “across”) + μέτρον (métron, “measure”). By surface analysis, dia- + -meter.

Synonyms

diam

Scrabble Score: 11

diameter: valid Scrabble (US) TWL word
diameter: valid Scrabble Word in Merriam-Webster MW Dictionary
diameter: valid Scrabble Word in International Collins CSW Dictionary

Words With Friends Score: 12

diameter is a valid Words With Friends word