διόπτευσις
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
English (LSJ)
εως, ἡ, A examination with the διόπτρα, Ptol.Alm.5.1, al.
Greek (Liddell-Scott)
διόπτευσις: -εως, ἡ, ἀκριβὴς παρατήρησις, Πτολεμ. Almag. σ. 109, 6.
Spanish (DGE)
-εως, ἡ
observación mediante un instrumento de precisión ὅπως ἅμα τῇ τοῦ ἡλίου ... διοπτεύσει καὶ ἡ σελήνη ... διοπτεύηται Ptol.Alm.5.1, cf. Heph.Astr.2.2.2.
