English word diameter comes from Ancient Greek διά, Ancient Greek μέτρον
| Dictionary entry | Language | Definition |
|---|---|---|
| διά | Ancient Greek (grc) | |
| μέτρον | Ancient Greek (grc) | |
| διάμετρος | Ancient Greek (grc) | |
| diametrus | Latin (lat) | |
| diametre | Old French (fro) | |
| diameter | English (en) | (geometry) Any straight line between two points on the circumference of a circle that passes through the centre/center of the circle.. (geometry) The length of such a line.. (geometry) The maximum distance between any two points in a metric space. (graph theory) The maximum eccentricity over all vertices in a graph. |