Ionic — or Ionian may refer to:In science: * Ion, in physics and chemistry, an atom or group of atoms with a net electric charge ** Ionic bond, a type of chemical bond involving ions ** Ionic compound, a chemical compound in which ions are held together… … Wikipedia
ionic bond — Chem. the electrostatic bond between two ions formed through the transfer of one or more electrons. Also called electrovalence, electrovalent bond. [1935 40] * * * Electrostatic attraction between oppositely charged ions in a chemical compound.… … Universalium
ionic bond — noun a chemical bond in which one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion • Syn: ↑electrovalent bond, ↑electrostatic bond • Hypernyms: ↑chemical bond, ↑bond * * * noun Etymology … Useful english dictionary
Ionic liquid — An ionic liquid is a liquid that contains essentially only ions. Some ionic liquids, such as ethylammonium nitrate are in a dynamic equilibrium where at any time more than 99.99% of the liquid is made up of ionic rather than molecular species. In … Wikipedia
Ionic bond — [ noble gas electron configuration, and this electron enters the chlorine atom exothermically. The oppositely charged ions are then attracted to each other, and their bonding releases energy. The net transfer of energy is that energy leaves the… … Wikipedia
ionic bond — ion′ic bond′ n. chem. the electrostatic bond between two ions formed through the transfer of one or more electrons • Etymology: 1935–40 … From formal English to slang
Phase transfer catalyst — A phase transfer catalyst or PTC in chemistry is a catalyst which facilitates the migration of a reactant in a heterogeneous system from one phase into another phase where reaction can take place. Ionic reactants are often soluble in an aqueous… … Wikipedia
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
rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… … Universalium
Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… … Universalium
