univalent

• Adjectif utilisé principalement en chimie et en mathématiques, signifiant qui a une valence égale à un (chimie) ou qui a une seule valeur (mathématiques). En usage courant, il est largement obsolète.

An adjective primarily used in chemistry and mathematics, meaning having a valence of one (chemistry) or having one value (mathematics). It is largely obsolete in general use.

1. Unpaired chromosomeC2formalscientific

   Describes a chromosome that is not paired or united with its homologous chromosome during synapsis.

   Chromosome univalent

   • During meiosis, a univalent chromosome fails to pair with its homolog.
   • The presence of a univalent can lead to aneuploidy in the resulting gametes.
   • Researchers observed a univalent in the cell division of the hybrid plant.

   Synonymessingleunpaired

2. C2formalscientific

   Having a chemical valence of one; capable of combining with one atom of hydrogen or its equivalent.

   univalent (chimie)

   • Hydrogen is a univalent element.
   • Sodium and potassium are univalent metals.
   • The univalent ion carries a single positive charge.

   Synonymesmonovalent

   Antonymesbivalentdivalentmultivalentpentavalentpolyvalenttetravalenttrivalent