biramous

[ bahy-rey-muhs ]

/ baɪˈreɪ məs /

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adjective Biology.

consisting of or divided into two branches: a biramous appendage.

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Also bi·ra·mose

[bahy-rey-mohs, bahy-ruh-mohs]. /baɪˈreɪ moʊs, ˌbaɪ rəˈmoʊs/.

Origin of biramous

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

Words nearby biramous

biquadratic, biquarterly, biracial, biradial, biradical, biramous, Biratnagar, birch, birchbark biting, birch beer, birchen

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

How to use biramous in a sentence

The name, meaning "cleft-footed," applies to the appendages of the thorax, which are once-branched (biramous).
The Sea-beach at Ebb-tide|Augusta Foote Arnold
The sixth segment of the abdomen has a pair of biramous appendages, which, with the telson, form a swimming-fan.
The Sea-beach at Ebb-tide|Augusta Foote Arnold
There are always six pairs; each biramous and multiarticulated, supported on a pedicel formed of two segments.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin
At the end of the last thoracic segment, there is a minute abdomen, bearing three pairs of biramous cirri.
A Monograph on the Sub-class Cirripedia (Volume 2 of 2)|Charles Darwin

There are four pairs of biramous cephalic appendages, which differ only very slightly from the appendages of the thorax.
The Appendages, Anatomy, and Relationships of Trilobites|Percy Edward Raymond

British Dictionary definitions for biramous

biramous

/ (ˈbɪrəməs) /

adjective

divided into two parts, as the appendages of crustaceans

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for biramous

biramous

[ bī-rā′məs ]

adj.

Consisting of or having two branches, as the appendages of an arthropod.