معنی کلمه :‌ diameter

A diametral plane.

Pertaining to, or designating, a substance now called salicylal. [Obs.]

The distance through the lower part of the shaft of a column, used as a standard measure for all parts of the order. See Module.

The length of a straight line through the center of an object from side to side; width; thickness; as, the diameter of a tree or rock.