alkenone

noun

al·ke·none ˈal-kə-ˌnōn How to pronounce alkenone (audio)

plural alkenones

: any of various long-chain unsaturated ketones that are produced by phytoplanktonic algae (such as the coccolithophores)

Note: Analysis of the chemical structure of alkenones present in marine sediment is used as a method to determine past sea temperatures.

To further the current climate debate, the chapter "Deep Sea Mud" explains how compounds such as alkenones, left by the marine alga Emiliania huxleyi, among other species, provide a temperature proxy.

Karen Bushaw-Newton, Bioscience, 1 Sept. 2009

Word History

Etymology

alkene + -one

First Known Use

1945, in the meaning defined above

单词	alkenone
释义	alkenone noun al·ke·none ˈal-kə-ˌnōn plural alkenones : any of various long-chain unsaturated ketones that are produced by phytoplanktonic algae (such as the coccolithophores) Note: Analysis of the chemical structure of alkenones present in marine sediment is used as a method to determine past sea temperatures. To further the current climate debate, the chapter "Deep Sea Mud" explains how compounds such as alkenones, left by the marine alga Emiliania huxleyi, among other species, provide a temperature proxy. Karen Bushaw-Newton, Bioscience, 1 Sept. 2009 Word History Etymology alkene + -one First Known Use 1945, in the meaning defined above
随便看	Stegocephalia stegocephaliae stegocephalian stegocephalians stegocephalias stegocephalous stegodon stegodons stegodont stegodonts Stegomus stegosaur stegosauri Stegosauri Stegosauria stegosaurian stegosauroid stegosaurs stegosaurus stegosauruses stegs Steichen steiermark steigerite steigh