kapok
noun
ka·pok ˈkā-ˌpäk 
1
or kapok tree : a massive tropical deciduous tree (Ceiba pentandra) of the silk-cotton family that has a trunk with short, sharp prickles, a buttressed base, and porous lightweight wood and that bears large seed pods containing numerous silky fibers
2
: a mass of silky fibers that surrounds the seeds of the kapok tree and are used especially as a filling for mattresses, pillows, life preservers, and sleeping bags and as insulation
Example Sentences
Recent Examples on the Web The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). 
The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). Gabriela Aoun, Outside Online, 10 Nov. 2021 His firm recently brought in a 90-foot tall kapok for the Four Seasons Hotel at the Surf Club in Miami that had previously been owned by a local sugar company in Central Florida. Katherine Clarke, WSJ, 22 Apr. 2021 See More
The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). The Editors, Outside Online, 2 July 2022 The beloved Avocado Organic pillow now comes in a 20-by-12-inch to-go size, with the same firm feel and organic kapok-fiber fill, plus an optional machine-washable cotton cover ($19). Gabriela Aoun, Outside Online, 10 Nov. 2021 His firm recently brought in a 90-foot tall kapok for the Four Seasons Hotel at the Surf Club in Miami that had previously been owned by a local sugar company in Central Florida. Katherine Clarke, WSJ, 22 Apr. 2021 See More Word History
Etymology
Malay
First Known Use
1735, in the meaning defined at sense 1