chemical reaction

noun
1.
Chemistry, reaction (def 7).
Examples from the web for chemical reaction
  • The compound is essential for photosynthesis, a chemical reaction that converts sunlight into carbohydrates.
  • The fluid travels through the channels and a chemical reaction occurs that causes the spot to change color.
  • But the whole process of ion movement and chemical reaction is slower than the movement of electrons in a capacitor.
  • When a battery is connected to a load, a chemical reaction begins.
  • Fireflies produce a chemical reaction inside their bodies that allows them to light up.
  • Air bags are not inflated from some compressed gas source but rather from the products of a chemical reaction.
  • Put together then, chemiluminescence means giving off light via a chemical reaction.
  • Fuel cells generate electricity in a chemical reaction between hydrogen and oxygen, which yields only pure water vapor.
  • They also glow, producing light by a chemical reaction.
  • Weighing six pounds, it provides an hour's worth of oxygen through a chemical reaction.
British Dictionary definitions for chemical reaction

chemical reaction

noun
1.
a process that involves changes in the structure and energy content of atoms, molecules, or ions but not their nuclei Compare nuclear reaction
chemical reaction in Culture

chemical reaction definition


A process in which atoms of the same or different elements rearrange themselves to form a new substance. While they do so, they either absorb heat or give it off.