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Consisting of or having two branches, as the appendages of an arthropod.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Zoology) divided into two parts, as the appendages of crustaceans
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(baɪˈreɪ məs)

also bi•ra•mose


consisting of or divided into two branches: a biramous appendage.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.biramous - resembling a forkbiramous - resembling a fork; divided or separated into two branches; "the biramous appendages of an arthropod"; "long branched hairs on its legson which pollen collects"; "a forked river"; "a forked tail"; "forked lightning"; "horseradish grown in poor soil may develop prongy roots"
divided - separated into parts or pieces; "opinions are divided"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
As with other planktonic copepods (Kiorboe 2011), adult monstrilloids have four pairs of biramous swimming legs.
In some embryos, we observed transient biramous antennules (Fig.
Biramous parapodia with a dorsal cirrus longer than ventral cirrus, both filiform.
The spider spinnerets are thought to arise evolutionarily from biramous opisthosomal appendages, similar to those reported for other arthropods (Shultz 1987).
A second region, the peraeon, of 7 segments, each with a pair of legs (peraeopods) and third region, pleaon, of 6 segments with pair of pleopods, except the last which together with biramous uropods form a swimming tail pleotelson [15].
The deeply biramous surstyli in combination with the apically projecting and very pointed cerci armed with three pairs of giant setae are diagnostic male characters not seen in other anthomyiid genera.
At the end of the abdomen is a pair of slender biramous appendages, the uropods.
Biramous limbs and nauplius larvae, apomorphic characters for crustaceans, can readily be optimized on an evolutionary tree, showing students why these taxa and other crustaceans share taxonomic identity.