lancelet(redirected from Lancelets)
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Any of various small chordate marine organisms of the subphylum Cephalochordata, having a long thin body with a notochord but no cranium or vertebrae, and usually found buried in sand. Also called amphioxus, cephalochordate.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Animals) 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
[C19: referring to the slender shape]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
lance•let(ˈlæns lɪt, ˈlɑns-)
any small, lancet-shaped burrowing marine animal of the subphylum Cephalochordata, having a notochord and numerous gill slits. Also called amphioxus.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Any of various small, transparent, fish-like animals that live in water and have a structure similar to that of vertebrates, but with a notochord instead of a true backbone. Lancelets are cephalochordates. Also called amphioxus.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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|Noun||1.||lancelet - small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates|
cephalochordate - fish-like animals having a notochord rather than a true spinal column
genus Amphioxus - type genus of the Amphioxidae
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