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Pronunciation: hal'o-jen

Definition: One of the chlorine group (fluorine, chlorine, bromine, iodine, astatine) of elements; halogens form monobasic acids with hydrogen, and their hydroxides (fluorine forms none) are also monobasic acids.

[G. hals, salt, + -gen, producing]

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.