quadrilateral

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

Learned borrowing from Latin quadrilaterus + -al.

It was a huge quadrilateral with canted corners, ten meters long, six wide, five high. — Twenty Thousand Leagues Under the Seas: An Underwater Tour of the World, Jules Verne
Before a big fire lay Captain Smollett; and in a far corner, only duskily flickered over by the blaze, I beheld great heaps of coin and quadrilaterals built of bars of gold. — Treasure Island, Robert Louis Stevenson
Heralded by the fire of two strong batteries--which swept the southwestern corner of the Russian quadrilateral, their crossfire ploughing its ranks with terrible effect--the first division, under Manteufel, fell upon the enemy. — With Frederick the Great: A Story of the Seven Years' War, G. A. (George Alfred) Henty

quadrangle, tetragon

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