diameter
US /daɪˈæm.ə.t̬ɚ/
UK /daɪˈæm.ə.t̬ɚ/

1.
diametro
a straight line passing from side to side through the center of a body or figure, especially a circle or sphere
:
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The diameter of the circle is 10 centimeters.
Il diametro del cerchio è di 10 centimetri.
•
Measure the diameter of the pipe.
Misura il diametro del tubo.