διατομή

ἡ
A. cutting through, severance, A. Th. 934 (lyr., pl., dub.), Ael. NA 13.20.
II. sharp edge, ὀδόντων ib.1.31.
III. hole, perforation, in a pipe, D.S. 2.10.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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