planimeter

A measuring instrument used to calculate the area of an irregular plane figure.

arجهاز قياسي يستخدم لحساب مساحة شكل مستوٍ غير منتظم، عبر تتبع محيطه بقضيب أو عجلة دوارة.ruИзмерительный прибор, используемый для вычисления площади неправильной плоской фигуры.esInstrumento de medición utilizado para calcular el área de una figura plana irregular.frInstrument de mesure utilisé pour calculer l'aire d'une figure plane irrégulière, notamment sur une carte ou un dessin.deEin Messinstrument zur Bestimmung des Flächeninhalts einer ebenen, unregelmäßig begrenzten Figur durch Umfahren der Berandung.ptInstrumento de medição usado para calcular a área de uma figura plana irregular.zh一种用于测量不规则平面图形面积的仪器，通过沿图形边界描迹来求出其面积。

1. Area measuring instrument C1 formal technical

   A mechanical or digital instrument used to measure the area of an irregular two-dimensional shape by tracing its outline.

   • The engineer used a planimeter to calculate the area of the irregular plot of land.
   • A planimeter is essential for accurately measuring the surface area of complex shapes on maps.
   • By tracing the perimeter of the leaf with a planimeter, the botanist determined its surface area.

   arمِقْياس المِساحةruПланиметрesplanímetrofrplanimètredePlanimeterptPlanímetrozh面积仪

• planimeters plural form
• planimeters' possessive plural form
• planimeter's possessive singular form