counterion
noun Date: 1940 an ion having a charge opposite to that of the substance with which it is associated

New Collegiate Dictionary. 2001.

Look at other dictionaries:

  • Counterion — A counterion is the ion that accompanies an ionic species in order to maintain electric neutrality. In table salt the sodium cation is the counterion for the chlorine anion and vice versa. In a charged transition metal complex, a simple (i.e. non …   Wikipedia

  • counterion — noun Any ion of opposite charge to that another in a solution or other electrochemical system Syn: gegenion See Also: counteranion, countercation …   Wiktionary

  • counterion — coun·ter·ion …   English syllables

  • counterion — ˈ ̷ ̷ ̷ ̷+ˌ noun Etymology: counter + ion : an ion having a charge opposite to that of the substance with which it is associated (as in an electric double layer) …   Useful english dictionary

  • Counterion condensation — The counterion condensation phenomenon is commonly described by Manning’s theory (Manning 1969), which assumes that counterions can condense onto the polyions until the charged density between neighboring monomer charges along the polyion chain… …   Wikipedia

  • Chloryl — Chloryl …   Wikipedia

  • DLVO theory — The DLVO theory is named after Derjaguin and Landau, Verwey and Overbeek. The theory describes the force between charged surfaces interacting through a liquid medium. It combines the effects of the van der Waals attraction and the electrostatic… …   Wikipedia

  • Metal aromaticity — In metal aromaticity the concept of aromaticity found in many hydrocarbons is extended to metals. The first experimental evidence for the existence of aromaticity in metals was found in aluminium cluster compounds of the type MAl4 where M stands… …   Wikipedia

  • acetylcholine — n. 1. a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the hydroxide form is {C7H17NO3}.… …   The Collaborative International Dictionary of English

  • C7H17NO3 — acetylcholine acetylcholine n. 1. a neurotransmitter released by the transmitting dendron at autononmous synapses and at neuromuscular junctions. It is a quaternary amine with an obligatory negative counterion. The nominal formula for the… …   The Collaborative International Dictionary of English

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