a palm tree, Lodoicea maldivica, of the Seychelles, producing a large fruit containing a two-lobed edible nut
2.
the nut of this palm
Also called: double coconut
Word origin
French: coconut of the sea
double coconut in American English
noun
1.
a tall, stout, fan palm, Lodoicea maldivica, of the Seychelles Islands, having nuts that are the largest seeds of any plant, often weighing 50 lb. (22.6 kg): populations are declining
2.
the seed of this tree
Also called: coco-de-mer
Word origin
[1820–30]This word is first recorded in the period 1820–30. Other words that entered Englishat around the same time include: acetate, blouse, morphology, myth, phonetic