`_`	(the underscore) is the placeholder for exactly one character.
`%`	(the percent sign) is the placeholder for no, one or more than one character.
`%%`	(two percent signs) is the placeholder for no, one or more than one character, but not for blank space (so that a search ends at word boundaries).

الخطّ الخارج من مركز (الدائرة) إلى الخطّ المحيط بها ‘radius’

Arabic

Translation of:
References:	PH Morelon: I.8:1, 27:3
Greek:	ἡ ἐκ τοῦ κέντρου [PH Heiberg: I.8:1, 80:5; I.9:3, 82:12]
Modern translations:
French:	le segment issu de son centre jusqu'à sa circonférence [PH Morelon: I.8:1, 26:3-4]
German:	die von seinem Mittelpunkt zur Peripherie gehende Linie [PH Nix: I.8:1, 81:6]
Synonyms:
(مخرج) من المركز	[Alm. MS Tunis: ?]
بعد	[Plan. Sidoli+Berggren: 22(2), 33, 46, 99, 100, 274(2), 413(2), 418, 447, 450, 491]
بعد	[Alm. MS Tunis: ]
نصف القطر	[Plan. Sidoli+Berggren: 92, 93, 122, 123, 127, 128(2), 168, 184, 199(2), 202, 207, 208, 212, 214, 246, 248, 275, 276, 348, 370]
نصف القطر	[Alm. MS Leiden: f. 6r]
نصف قطر	[PH Morelon: I.9:3, 29:11]