A small piece or fragment of something.

किसी चीज का एक छोटा टुकड़ा या अंश।

English Usage: Scientists found a particle that could change our understanding of quantum mechanics.

Hindi Usage: वैज्ञानिकों ने एक कण पाया जो हमारे क्वांटम यांत्रिकी की समझ को बदल सकता है।

The electrode from which electrons are emitted or to which positive ions are attracted in an electrochemical cell.