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unpaired

/ʌnˈpɛərd/ · un·paired
adjective
  1. Not forming one of a pair The unpaired electron in the atom was highly reactive.
verb
  1. To go from a paired to a non-paired state; to disassociate The two atoms unpaired and formed new bonds with other molecules.
Did you know? The concept of unpaired elements is crucial in chemistry, particularly in understanding the behavior of free radicals, which are highly reactive molecules with unpaired electrons. This concept has significant implications in various fields, including materials science and biology.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 19, 2026