κάθετ-ος,ον, (καθίημι)
A. let down, perpendicular, πρὸς τὴν γῆν
Arist. Mech. 857b28
;καθέτανisf.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. δ' ἐμετρήθηEpigr. 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. 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.ἀμνόςorβοῦς),ὁ,an animal let down into the seaas an offering to Poseidon, Lys. Fr. 227
S. , cf. Phot. , Suid.