concentric hammarkaz (#) Fr.: concentrique Having a common center, as circles or spheres. From O.Fr. concentrique, from M.L. concentricus, from → com- "together" + centrum "circle, center." ham- + centric, from → center |
concentric lens adasi-ye hammarkaz (#) Fr.: lentille concentrique A lens having surfaces whose centers of curvature coincide. → concentric; → lens. |