- Bivalent (chemistry)
Bivalent (chemistry): two or more atoms bound together as a single unit and forming part of a molecule
An atom which can form two covalent bonds with other molecules (such as oxygen) is said to be bivalent, possessing a valency of two.
Principle of bivalence(logic)
Wikimedia Foundation. 2010.
Look at other dictionaries:
Bivalent — may refer to: *Bivalent (chemistry), a molecule formed from two or more atoms bound together as a single unitmolecule *Bivalent (engine), an engine that can use petroleum and renewable energy *Bivalent (genetics), a pair of homologous chromosomes … Wikipedia
bivalent — /baɪˈveɪlənt / (say buy vayluhnt) –adjective 1. Chemistry having a valency of two. 2. Biology relating to composites of two similar or identical chromosomes, or chromosome sets. –noun 3. Biology a bivalent pair or set of chromosomes. –bivalence,… … Australian English dictionary
bivalent — biÂ·vaÂ·lent || baÉªâ€šveÉªlÉ™nt adj. having two valences, having a valence of two (Chemistry); having two homologous chromosomes (Biology) … English contemporary dictionary
bivalent — adjective 1》 bɪv(ə)l(ə)nt Biology (of homologous chromosomes) associated in pairs. 2》 bʌɪ veɪl(ə)nt Chemistry another term for divalent. noun bɪv(ə)l(ə)nt Biology a pair of homologous chromosomes. Origin C19: from bi + L. valent , valere be… … English new terms dictionary
bivalent — a. Chemistry, with valency of two; n. Biology, double chromosome. ♦ bivalency, n … Dictionary of difficult words
divalent — diÂ·vaÂ·lent || daÉªâ€šveÉªlÉ™nt adj. bivalent (Chemistry) … English contemporary dictionary
Organosulfur compounds — are organic compounds that contain sulfur. They are often associated with foul odours, but many of the sweetest compounds known are organosulfur derivatives. Nature abounds with organosulfur compounds sulfur is essential for life. Two of the 20… … Wikipedia
Compuesto de organoazufre — Enlace covalente carbono azufre, típico de los compuestos organosulfurados. Los compuestos organosulfurados o compuestos de organoazufre son compuestos orgánicos que contienen átomos de azufre enlazados a átomos de carbono. A menudo se asocian… … Wikipedia Español
Chromatin — The major structures in DNA compaction; DNA, the nucleosome, the 10nm beads on a string fibre, the 30nm fibre and the metaphase chromosome Chromatin is the combination of DNA and proteins that make up the contents of the nucleus of a cell. The… … Wikipedia
Alkene — This article is about the chemical compound. For the material, see Olefin fiber. Not to be confused with Alkane or Alkyne. A 3D model of ethylene, the simplest alkene. In organic chemistry, an alkene, olefin, or olefine is an unsaturated ch … Wikipedia