ध्वनिग्राही मतलब [सं-पु.] - एक यंत्र जिससे धीमी से धीमी आवाज़ भी ठीक सुनाई दे; (माइक्रोफ़ोन)। Also see Dhwanigrahi in English.
Here is meaning of Dhwanigrahi in hindi. Get definition and hindi meaning of Dhwanigrahi. What is Hindi definition and meaning of Dhwanigrahi ? (hindi matlab - arth kya hai?).