ceithir-cheàrnach m (geometry) quadrilateral ceithir-cheàrnach quadrilateral, quadrangular...
Russian: четырёхуго́льник (ru) m (četyrjoxugólʹnik) Scottish Gaelic: ceithir-cheàrnach m Serbo-Croatian: Cyrillic: четвороугао m, че̏тверокӯт m Roman: četverougao m...