Show pagesourceBacklinksCite current pageExport to PDFBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × having an outline or surface that curves inwards like the interior of a circle or sphere. concave.txt Last modified: 2024/06/07 02:57by 127.0.0.1