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ion
noun(ion)an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons
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noun(ion)a charged subatomic particle (such as a free electron)
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abbreviation(ion)Ionic
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noun suffix(ion)act or process
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noun suffix(ion)result of an act or process
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noun suffix(ion)state or condition
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noun(ion)the cation H+ of acids consisting of a hydrogen atom whose electron has been transferred to the anion of the acid
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noun(ion)hydronium
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noun(ion)the monovalent anion OH— consisting of one atom of hydrogen and one of oxygen —called also hydroxide ion
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noun(ion)an ionic compound of hydroxide with an element or group
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noun(ion)a cell membrane channel that is selectively permeable to certain ions (as of calcium or sodium)
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noun(ion)a reaction engine deriving thrust from the ejection of a stream of ionized particles
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noun(ion)a reversible interchange of one kind of ion present on an insoluble solid with another of like charge present in a solution surrounding the solid with the reaction being used especially for softening or demineralizing water, the purification of chemicals, or the separation of substances
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noun(ion)an insoluble material of high molecular weight that contains groups which can be exchanged with ions in a solution with which it is in contact
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noun(ion)a rechargeable battery that uses lithium ions as the primary component of its electrolyte