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reactive materials JUST WRITTEN FOR YOU

/riˈæktɪv məˈtɪriəlz/ · re·ac·tive ma·te·ri·als
noun
  1. Substances that readily undergo chemical reactions under specified conditions, often requiring special handling or storage. The laboratory kept its reactive materials, such as sodium metal and chlorine gas, in sealed, temperature‑controlled cabinets.
  2. Engineered compounds that respond predictably to external stimuli (heat, light, pressure) and are used in smart‑material applications. Scientists are designing reactive materials that expand when exposed to sunlight for use in self‑adjusting building facades.
Did you know? The term “reactive materials” was popularized during World II to describe the high‑energy compounds used in incendiary weapons, and it later migrated into civilian research on adaptive, shape‑changing materials.
Written by Lexi Wordsworth, Dictionary Editor 0 lookups Added Jul 17, 2026