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1. WordNet® 3.0 (2006) | ||
amphioxus n 1: small translucent lancet-shaped burrowing marine animal; primitive forerunner of the vertebrates [syn: lancelet, amphioxus] | ||
2. The Collaborative International Dictionary of English v.0.48 | ||
Amphioxus \Am`phi*ox"us\, n. [NL., fr. Gr. 'amfi` + ? sharp.] (Zool.) 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, vertebr[ae], nor red blood. It forms the type of the group Acrania, Leptocardia, etc. [1913 Webster] | ||
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