Definition of “react”
verb:
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To act or perform a second time; to do over again; as, to react a play; the same scenes were reacted at Rome.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
To return an impulse or impression; to resist the action of another body by an opposite force; as, every body reacts on the body that impels it from its natural state.
from Wiktionary, Creative Commons Attribution/Share-Alike License -
To act upon each other; to exercise a reciprocal or a reverse effect, as two or more chemical agents; to act in opposition.
from Wiktionary, Creative Commons Attribution/Share-Alike License
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