bivalent

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bivalent

[bī′vā·lənt]
(chemistry)
Possessing a valence of two.
References in periodicals archive ?
During early mammalian development, approximately 2,000 genes are bivalently marked as described earlier, and these marks progressively resolve towards the lineage-specific patterns of chromatin organization characterizing each unique cell type (Rugg-Gunn et al.
The law should not ask the odds of the elements bivalently and conjoinedly existing on the videotape.
What I attempt coming to grips with in this essay is an alternative 'logic' of more than two values, namely: (1) imaginary (giving rise to viable new possibilities that can emerge and take their respective place in our perceived and conceived world in terms of how we distinguish it into our familiar bivalently ordered eithers and ors--chiefly of the nature of Firstness), (2) true or false (of the nature of bivalent logic, classically conceived-chiefly a matter of Secondness), and (3) emergent (within the range of likely, probable, or necessary timespace frames or contexts-within the parameters of Thirdness).