অর্থ : A shape that curves or bends inward.
সমার্থক : concave shape, incurvation, incurvature
অর্থ : The property possessed by a concave shape.
সমার্থক : concaveness
Concavity ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Concavity ka matlab kya hota hai?