from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See lancelet.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The lancelet
from the GNU version of the Collaborative International Dictionary of English
- n. A fishlike creature (Amphioxus lanceolatus), two or three inches long, found in temperature seas; -- also called the lancelet. Its body is pointed at both ends. It is the lowest and most generalized of the vertebrates, having neither brain, skull, vertebræ, nor red blood. It forms the type of the group Acrania, Leptocardia, etc.
from The Century Dictionary and Cyclopedia
- n. The lancelets, the typical genus of the family Amphioxidæ, whose body is compressed and tapers to a point at each end: a synonym of Branchiostoma (which see). See also cut under lancelet.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates
amphi- + Greek oxus, sharp; see ak- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)