divalent

(redirected from Cations, divalent)
Also found in: Dictionary, Thesaurus, Encyclopedia.

divalent

 [di-va´lent]
bivalent; having a valence of two.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

bi·va·lent

(bī-vā'lent, biv'ă-lent),
1. Having a combining power (valence) of 2.
See also: tetrad. Synonym(s): divalent
2. In cytology, a structure consisting of two paired homologous chromosomes, each split into two sister chromatids, as seen during the pachytene stage of prophase in meiosis.
See also: tetrad.
Farlex Partner Medical Dictionary © Farlex 2012

divalent

(dī-vā′lənt)
adj.
1. Chemistry Having a valence of 2.
2. Immunology
a. Having two sites of attachment. Used of an antibody or antigen.
b. Containing antigens from two strains of a microorganism or virus. Used of a vaccine or serum.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

bi·va·lent

(bī-vā'lĕnt)
1. Having a combining power (valence) of two.
Synonym(s): divalent.
2. cytology a structure consisting of two paired homologous chromosomes, each split into two sister chromatids, as seen during the pachytene stage of prophase in meiosis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012