Definition of amphioxus in English:


Line breaks: amphi|oxus
Pronunciation: /ˌamfɪˈɒksəs


  • A small lancelet which is caught for food in parts of Asia.
    • Genus Branchiostoma (formerly Amphioxus), family Branchiostomidae
    More example sentences
    • Thus amphioxus is the only chordate species in which distinct insulin and IGF genes have not been found.
    • Organisms along the lines of the cephalochordate amphioxus use the gill apparatus for filter feeding.
    • The cephalochordate amphioxus is the closest living invertebrate relative of the vertebrates and therefore the best model organism for understanding the composition of the ancestral chordate genome.


mid 19th century: modern Latin, from amphi- + Greek oxus 'sharp'.

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elaborate ornamentation of a vocal melody