quadrilateral

Etymology

From Latin quadrilaterus, quadri- (“four”) + Latin laterālis (“sided”)

Pronunciation

• IPA^(key): /ˌkwɒd.ɹəˈlæt.əɹ.əl/
• enPR: kwäd'-rə-lăt′-ər-əl

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Noun

quadrilateral (plural quadrilaterals)

1. A polygon with four sides.
2. An area defended by four fortresses supporting each other.

   The Venetian quadrilateral comprised Mantua, Peschiera, Verona, and Legnano.

Adjective

quadrilateral (not comparable)

1. having four sides.

Adjective

quadrilateral m, f (plural quadrilaterais, comparable)

1. quadrilateral (having four sides)