English▸ noun
1 [mass noun] (also cajuput oil) an aromatic medicinal oil obtained from a tree of the myrtle family.
2 a chiefly Australasian tree related to the bottlebrushes, with papery bark. Also called paperbark
Genus Melaleuca, family Myrtaceae: M. cajuputi, which produces cajuput oil, and M. quinquenervia.
– ORIGIN late 18th century: from Malay kayu putih, literally ‘white tree’.