diameter

Meanings

1. 1
   noun

   The length of such a line.

   In cases without good face contact, the diameter of the toolholder at the front of the flange or the tool itself should not be any larger than the gage diameter of the toolholder shank from a bending stiffness viewpoint.

2. 2
   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)

3. 3
   noun

   the length of a straight line passing through the center of a circle and connecting two points on the circumference

4. 4
   noun

   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.

5. 5
   noun

   The maximum distance between any two points in a metric space.

6. 6
   noun

   The maximum eccentricity over all vertices in a graph.

Etymology

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