κατοπτήρ
Ὥσπερ αὐτοῦ τοῦ ἡλίου μὴ ὄντος καυστικοῦ, ἀλλ' οὔσης ζωτικῆς καὶ ζωοποιοῦ θέρμης ἐν αὐτῷ καὶ ἀπλήκτου, ὁ ἀὴρ παθητικῶς δέχεται τὸ ἀπ' αὐτοῦ ϕῶς καὶ καυστικῶς· οὕτως οὖν ἁρμονίας οὔσης ἐν αὐτοῖς τινὸς καὶ ἑτέρου εἴδους ϕωνῆς ἡμεῖς παθητικῶς ἀκούομεν → Just as although the Sun itself does not cause burning but has a heat in it that is life-giving, life-engendering, and mild, the air receives light from it by being affected and burned, so also although there is a certain harmony and a different kind of voice in them, we hear it by being affected.
English (LSJ)
ῆρος, ὁ,
A spy, scout, A.Th.36 (pl.). II = ἑδροδιαστολεύς, Hp.Fist.3, Haem.5 (κάτοπτρον Erot.).
German (Pape)
[Seite 1404] ῆρος, ὁ, der Späher, Kundschafter, καὶ σκοποὶ στρατοῦ Aesch. Spt. 36. – Bei den Chirurgen ein Instrument zur Erweiterung verengter Kanäle, Sonde, Hippocr.