J. Kissling's definitions
(re-ak-tent) n. 1: A substance that enters into and is altered in the course of a chemical reaction. 2: The starting material in a chemical reaction.
Power Reactant Storage Assemblies are sets of oxygen and hydrogen tanks that provide reactants for electrical power generation and basic life support to the shuttle crew.
by J. Kissling July 21, 2008
Get the reactantmug.