- Chemistry Divalent.
- Biology comprising a couple of homologous, synapsed chromosomes, as happens during meiosis; twice.
- Having a valence of 2.
- Of, or relating to a couple of homologous synapsed chromosomes that occur during meiosis.
- Equivalent in combining or displacing capacity to two atoms of hydrogen; dyad.
- used of homologous chromosomes associated in sets in synapsis
- having a valence of two or having two valences
- Biology a couple of homologous, synapsed chromosomes connected together during meiosis.
- Any bivalent chromosome.
- In chem., applied to a component an atom which can change two atoms of hydrogen or other univalent factor, or even to a radical which includes similar valence as a bivalent atom.
- In cytology, having twice as distinguished from solitary (univalent) chromosomes in the oöcytes and spermatocytes, as in one of many types of the roundworm of this horse (Ascaris megalocephala).
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