deriv► niṣf quṭr al-dāʔiraẗ, n., radius (of the circle)► quṭrī, adj., 1 ↗¹quṭr; 2 diametral, diametrical: nisba formation.For other values attached to the root, cf. ↗qaṭara, ↗qaṭṭara, ↗qiṭār, ↗taqāṭara, ↗¹quṭr, ↗Qaṭar, ↗quṭ(u)r, ↗qaṭrān, ↗miqṭaraẗ, ↗Qaṭṭāraẗ, and, for the general picture (incl. earlier values, now obsolete), root entry ↗QṬR.