diameter

diamètre

Distance entre deux bords opposés d’un cercle ou d’un objet rond, mesurée en passant par son centre.

En anglais simple : The distance across a circle or round object, measured through its center.

• What is the diameter of this plate?
• The wheel measures fifty centimeters in diameter.
• We need pipes with a larger diameter.

Comment l'utiliser : a diameter of + measurement (The pipe has a diameter of ten centimeters.); measurement + in diameter (The plate is thirty centimeters in diameter.)

Expressions courantes : in diameter, small diameter, outside diameter

diamètre

Segment droit qui traverse le centre d’un cercle et relie deux points opposés de son bord.

En anglais simple : A straight line across a circle, passing through its center and joining opposite edges.

• Draw a diameter across the circle.
• Every diameter passes through the center.
• Two diameters divide the circle into four parts.

Comment l'utiliser : diameter of something (Draw a diameter of the circle through point A.)

Expressions courantes : draw a diameter, diameter of something