biramous

American  

[bahy-rey-muhs] / baɪˈreɪ məs /

Also biramose

adjective

Biology.

1. consisting of or divided into two branches.

   a biramous appendage.

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biramous British  

/ ˈbɪrəməs /

adjective

1. divided into two parts, as the appendages of crustaceans

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Etymology

Origin of biramous

First recorded in 1875–80; bi- ¹ + ramous

Example Sentences

Illustration A shows the biramous, or two-branched leg of a crayfish.

From Textbooks • Jan. 1, 2015

The abdomen of the female is very broad, and has four pairs of biramous appendages covered with hairs, the normal function of which is to carry the eggs.

From Hormones and Heredity by Cunningham, J. T.

The antennules are uniramous, the others biramous, and all three pairs are used in swimming.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

The eyes were probably stalked, the antennae and mandibles biramous and natatory, and both armed with masticatory processes.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

It is highly probable, however, that the biramous limb is a simplification of a more complex primitive type, to which the Phyllopod limb is a more or less close approximation.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various