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lancelet

[lans-lit, lahns-] /ˈlæns lɪt, ˈlɑns-/
noun
1.
any of several small, lancet-shaped burrowing marine animals of the subphylum Cephalochordata, having a notochord and bearing structural similarities to both vertebrates and invertebrates.
Also called amphioxus.
Origin
1565-1575
1565-75; lance2 + -let
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for lancelet
  • Leaves are lancelet shaped with prominent white veins and smooth or finely serrated edges.
  • In adult plants, leaves are lancelet shaped with prominent white veins and smooth or finely serrated edges.
British Dictionary definitions for lancelet

lancelet

/ˈlɑːnslɪt/
noun
1.
any of several marine animals of the genus Branchiostoma (formerly Amphioxus), esp B. lanceolatus, that are closely related to the vertebrates: subphylum Cephalochordata (cephalochordates) Also called amphioxus
Word Origin
C19: referring to the slender shape
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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lancelet in Science
lancelet
  (lāns'lĭt)   
Any of various small, transparent, fishlike marine organisms of the subphylum Cephalochordata that are related to vertebrates but have a notochord instead of a true backbone. Unlike other primitive chordates, lancelets have a body divided into serially repeated muscular segments. Also called amphioxus.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for lancelet

any member of the subphylum Cephalochordata of the phylum Chordata. Small, fishlike marine invertebrates, they probably are the closest living relatives of the vertebrates. There are about 20 species in two families, each with a single genus. Branchiostoma was formerly called Amphioxus, a name that is retained as an informal term. The other genus is Epigonichthys, also called Asymmetron. The genus Asymmetron is sometimes retained for some species

Learn more about lancelet with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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