/ ˈrektæŋgl; NAmE / noun
a flat shape with four straight sides, two of which are longer than the other two, and four angles of 90°
► rect·angu·lar / rekˈtæŋgjələ(r); NAmE / adjective
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WORD ORIGIN
late 16th cent.: from medieval Latin rectangulum , from late Latin rectiangulum , based on Latin rectus straight + angulus an angle.