univalent+shift

См. также в других словарях:

• nervous system — Anat., Zool. 1. the system of nerves and nerve centers in an animal or human, including the brain, spinal cord, nerves, and ganglia. 2. a particular part of this system. Cf. autonomic nervous system, central nervous system, peripheral nervous… …   Universalium

• 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

• PH — is the measure of the acidity or alkalinity of a solution. It is formally a measure of the activity of dissolved hydrogen ions (H+), but for very dilute solutions, the molarity (molar concentration) of H+ may be used as a substitute with little… …   Wikipedia

• Charles Jencks — Jencks Landform at the Scottish National Gallery of Modern Art …   Wikipedia

• test — 1. To prove; to try a substance; to determine the chemical nature of a substance by means of reagents. 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues,… …   Medical dictionary