amphioxus


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am·phi·ox·us

 (ăm′fē-ŏk′səs)
n.

[amphi- + Greek oxus, sharp; see ak- in Indo-European roots.]

amphioxus

(ˌæmfɪˈɒksəs)
n, pl -oxi (-ˈɒksaɪ) or -oxuses
(Animals) another name for the lancelet
[C19: from New Latin: both ends being sharp, from amphi- + Greek oxus sharp]

lance•let

(ˈlæns lɪt, ˈlɑns-)

n.
any small, lancet-shaped burrowing marine animal of the subphylum Cephalochordata, having a notochord and numerous gill slits. Also called amphioxus.
[1565–75]

am·phi·ox·us

(ăm′fē-ŏk′səs)
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.amphioxus - small translucent lancet-shaped burrowing marine animalamphioxus - 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
References in periodicals archive ?
Rather than having acquired the muscle independently, amphioxus could be a living record of the transition from muscle-based midline to cartilaginous notochord.
Identification and characterization of novel amphioxus microRNAs by Solexa sequencing.
An amphioxus (also called a lancelet), which is a very distant cousin to humans and other vertebrates.
The prehistoric Amphioxus, described by the Scottish Government as "elusive", was found in waters off Tankerness in Orkney.
The prehistoric amphioxus was found in waters off Tankerness in Orkney.
Spanning from the weird to the wonderful, discoveries this year have included the bizarre Amphioxus and the beautiful yet elusive brightly-coloured flame shell.
These early ancestors of man, thus seen in the dim recesses of time, must have been as simply, or even still more simply organized than the lancelet or amphioxus.
2007) reported nine Pax genes in amphioxus, also lacking eyes, including four newly described homologues of six and eyes absent.
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Instead, they resemble the living invertebrate called amphioxus, a passive filter-feeding marine animal.
A neurotrophic herpes virus infecting the gastropod, abalone, shares ancestry with oyster herpes virus and a herpes virus associated with amphioxus genome.