What is "kaffir lime"

n. (taxlink Citrus hystrix species noshow=1), a species of fragrant, small limes native to Southeast Asia.

The kaffir lime (Citrus hystrix), sometimes referred to in English as the makrut lime or Mauritius papeda, is a citrus fruit native to tropical Asia, including India, Nepal, Bangladesh, Thailand, Indonesia, Malaysia and the Philippines.

Its fruit and leaves are used in Southeast Asian cuisine and its essential oil is used in perfumery.