प्रवर्धक मतलब [सं-पु.] - विद्युत तरंगों की तीव्रता बढ़ाने वाला उपकरण; (एंप्लीफ़ाइयर)। [वि.] बढ़ाने वाला; वृद्धिकारक। Also see Pravardhak in English.
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