Definitions

1. 1.diameter (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)
2. 2.diameter (length of such a line)
3. 3.line or cross-country route
4. 4.specimens of some group of organisms, having an average size
5. 5.sounds of medium pitch and frequency

Forms