WordReference English-Arabic Dictionary © 2012:
| ترجمات رئيسية |
| concave adj | (curved inwards) | مقعر |
WordReference English-Arabic Dictionary © 2012:
| صيغ مركبة |
| concave mirror n | (reflecting device that curves inward) | مرآة مقعرة |
| | Most large optical astronomical telescopes use a concave mirror to bring the light to a focus, rather than the familiar convex lens found in smaller terrestrial telescopes. |