অর্থ : Vacuum flask that holds liquid air or helium for scientific experiments.
সমার্থক : dewar flask
অর্থ : Scottish chemist and physicist noted for his work in cryogenics and his invention of the Dewar flask (1842-1923).
সমার্থক : sir james dewar
Dewar ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Dewar ka matlab kya hota hai?