Definition of biramous in English:


Syllabification: bi·ra·mous
Pronunciation: /bīˈrāməs


  • (Especially of crustacean limbs and antennae) dividing to form two branches.
    More example sentences
    • An answer lies, he says, in the origin and modification of the ancestral biramous limb.
    • The appendages are primitively branched, and although this condition is modified in many species, adults always have at least some biramous appendages.
    • The anteriormost five abdominal appendages are, almost without exception, biramous.


late 19th century: from bi- 'two' + ramus + -ous.

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