A type of citrus fruit known for its acidic taste, often used in marmalades and to make drinks.

खट्टा संतरा

English Usage: The sour orange tree produces fruit that is much more bitter than sweet oranges.

Hindi Usage: खट्टा संतरे का पेड़ ऐसा फल उगाता है जो मीठे संतरे की तुलना में ज्यादा कड़वा होता है.