Trisection, trí-sek'-shun, s
Nuttall's Standard Dictionary of the English Language · 1890 · p. 188
the division of a thing, as an angle, into three equal parts.
Bu kavram başka kaynaklarda da geçiyor
Sek
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A Concise Dictionary of Middle English from A.D. 1150 to 1580 (1889)
Readham'da tam maddeyi gor →