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κάθετος

κάθετος, let down,vertical, perpendicular, plumb line

κάθετ-ος, ον, (καθίημι)
  • let down, perpendicular, πρὸς τὴν γῆν Arist. Mech. 857b28; καθέταν is f.l. in Alc. 39: usu. Subst.,
      • 1 κάθετος (sc. γραμμή), ἡ, perpendicular, Arist. Mete. 373a11, Ti.Locr. 98b, etc., al.; plumb-line, Aen.Tact. 32.6; πρὸς τὴν κ. δʼ ἐμετρήθη Epigr. ap. Plu. Aem. 15; κατὰ κάθετον vertically, perpendicularly, Ph. Bel. 69.22, Heliod. ap. Orib. 49.13.1, Placit. 2.24.1, Apollod. Poliorc. 155.9; κατὰ κ. τοῦ ὀμφαλοῦ vertically below, Paul.Aeg. 6.50; πρὸς κ. Plu. Fac.lun. 2.938a; perpendicular height, τριῶν ἥμισυ σταδίων ἔχειν τὴν κ. Str. 8.6.21.
      • 2 (sc. ὁρμιά), ἡ, fishing-line, Opp. H. 3.77, 138, AP 7.637 (Antip., v.l. καθέτης).
      • 3 (sc. ἀμνός or βοῦς), ὁ, an animal let down into the sea as an offering to Poseidon, Lys. Fr. 227 S., cf. Phot., Suid.

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