τομεύς

έως, Adj., ὁ
A. one that cuts, a carver, Poll. 6.13, etc.; τ. σίδηρος Max. 277; πέλεκυς αὐχένος τ. Trag.Adesp. 412; divider, ὁ ἀόρατος τ., i. e. God, Ph. 1.498; as Adj., ὁ τ. λόγος ib.491.
2. shoemaker's knife, Pl. Alc. 1.129c; edge of a knife, X. Eq.Mag. 2.3.
3. forceps, gloss on τομεῖον, Gal. 19.146.
4. pl. τομεῖς,οἱ, cutting-teeth, incisors, Anon.Lond. 24.23, Cels. 8.1, Gal. 2.754, Poll. 2.91, Gp. 16.1.13, Simp. in Cael. 664.3.
II. Math., sector of a circle, Euc. 6.33, Hero *Deff. 34.
2. τ. στερεός sector of a sphere (intercepted by cone with vertex at centre), Archim. Sph. Sph.Cyl. 1 Def. 5; but τ. ἐν τῇ ἐπιφανείᾳ, i.e. surface included betw. two great circles and a circle cutting each at right angles, Papp. 268.1.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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