= Eudemus 171b.14 Niese; Synagoge pi66; Photius pi129 Theodoridis.
The headword is either neuter nominative/accusative singular or masculine accusative singular; cf. in any event pi 163. Most attestations of this adjective either refer directly to music or are arguably a metaphor drawn from music. Hence the translation of the gloss assumes a musical context, although a more concrete connotation, 'fitted on all sides' would be possible; cf. a scholion to Homer, Iliad 18.600, where an identical gloss is used to explain the word a)/rmenon in relation to a well-made wheel.
Georgius Pachymeres, Quadrivium 3.47, uses the same combination of words to describe a cube, which he claims is also called a(rmoni/a ('harmony').