noun
kumquat
Refers to the small citrus fruit or the tree itself. The spelling 金柑 is standard; キンカン is common in shops and gardening.
庭に金柑の木を植えました。
I planted a kumquat tree in the garden.
金柑は皮ごと食べられます。
Kumquats can be eaten with the peel on.
Rarely used kanji form; 金柑 is preferred.
From Chinese 金橘 (jīn jú), literally 'golden orange'. The reading きんかん is the on'yomi of the kanji.