bi valence

bivalent

[bahy-vey-luhnt, biv-uh-]
adjective
1.
Chemistry.
a.
having a valence of two.
b.
having two valences, as aluminum with valences of two and three.
2.
Genetics. pertaining to associations of two homologous chromosomes.
noun
3.
Genetics. a pair of bivalent chromosomes, especially when pairing during meiosis.

Origin:
1865–70; bi-1 + -valent

bivalence [bahy-vey-luhns, biv-uh-luhns] , bivalency, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To bi valence
Collins
World English Dictionary
bivalent (baɪˈveɪlənt, ˈbɪvə-)
 
adj
1.  chem another word for divalent
2.  (of homologous chromosomes) associated together in pairs
 
n
3.  a structure formed during meiosis consisting of two homologous chromosomes associated together
 
bi'valency
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
Etymonline
Word Origin & History

bivalent
1869, of chemicals, 1899, of chromosomes, from bi- + -valent, from L. valentem, prp. of valere "be worth" (see valiant)
Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
American Heritage
Medical Dictionary

bivalent bi·va·lent (bī-vā'lənt)
adj.

  1. Having a valence of 2; divalent.

  2. Consisting of a pair of homologous, synapsed chromosomes, as occurs during meiosis; double.

n.
A pair of homologous, synapsed chromosomes associated together during meiosis.
bi·va'lence or bi·va'len·cy n.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
American Heritage
Science Dictionary
bivalent   (bī-vā'lənt)  Pronunciation Key 
Chemistry Having a valence of 2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Copyright © 2014 Dictionary.com, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature