σκιαγραφία
From LSJ
οἱ Κυρηναϊκοὶ δόξαις ἐχρῶντο τοιαύταις: δύο πάθη ὑφίσταντο, πόνον καὶ ἡδονήν, τὴν μὲν λείαν κίνησιν, τὴν ἡδονήν, τὸν δὲ πόνον τραχεῖαν κίνησιν → the Cyrenaics admitted two sensations, pain and pleasure, the one consisting in a smooth motion, pleasure, the other a rough motion, pain
English (LSJ)
ἡ,
A painting with the shadows (cf. σκιαγραφέω), so as to produce an illusion of solidity at a distance, scene-painting, σ. ἀσαφεῖ καὶ ἀπατηλῷ χρώμεθα Pl.Criti.107d; σκιαγραφίαν ἀρετῆς περιγραπτέον Id.R.365c, cf. 602d, Phd.69b, Numen. ap. Eus.PE14.5, 26; ἡ σ. καὶ τὰ ἐνύπνια, compared as being both illusory, Arist. Metaph.1024b23; ἡ δημηγορικὴ λέξις ἔοικε τῇ σ., i.e. in being calculated for effect, Id.Rh.1414a8, cf. D.C.52.7.