PAL

Ptolemaeus Arabus et Latinus

_ (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).

At the beginning and at the end, these placeholders are superfluous.

في مقابلة  ‘diametrically opposite’

Arabic

References: Alm. MS Tunis:
Translation of:
Greek: κατὰ διάμετρον [Alm. Heiberg: I.5, 19:24]
Synonyms:
(الجزء) الذي يقابله، وهو نظيره[Alm. MS Leiden: f. 24v.6]
(الجزء) المقابل له[Alm. MS Tunis: 31a.6]
النقطة التي تقابلها[Alm. MS Leiden: f. 10v]
النقطة المقاطرة[Alm. MS Tunis: ]
جزين متقاطرين[Alm. MS Tunis: ]
مقابلة[Alm. MS Leiden: f. 4v]
موضعين متقابلين[Alm. MS Leiden: f. 10v]
نظير (الجزء)، الذي يقابله[Alm. MS Leiden: f. 24v.7]