React

Definition

The term "react" describes the act of responding to a stimulus, event, or situation, or undergoing a chemical change as a result of interaction with another substance.

Parts of Speech

• Verb

Pronunciation

American English

• IPA Pronunciation: /riˈækt/
• Respelling: ree-AKT

British English

• IPA Pronunciation: /riˈækt/
• Respelling: ree-AKT

Etymology

The word "react" originates from the Latin "reactus," meaning "to act back," derived from "re-" (again) and "agere" (to do, act). It entered English in the early 17th century.

Derivatives

• Reaction (noun)
• Reactive (adjective)
• Reactivity (noun)
• Overreact (verb)
• Reactance (noun, technical)

Synonyms

• Respond
• Answer
• Counter

Antonyms

• Ignore
• Neglect
• Overlook

Usage

The term "react" is commonly used in everyday language, scientific contexts, and emotional responses. For example: "She reacted quickly to the unexpected news," or "The chemicals reacted violently when combined."

Related Terms

• Response: An action or feeling elicited by a stimulus.
• Interaction: The reciprocal action or influence between entities.
• Adapt: To change or adjust in response to new conditions.

Detailed Definitions

Verb

• To respond to a stimulus or event: Refers to taking action or showing emotion in response to something.
  • Example: "The audience reacted positively to the speech."
• To undergo a chemical change: Refers to substances interacting and transforming chemically.
  • Example: "The acid reacted with the metal to produce hydrogen gas."
• To act in opposition or resistance: Refers to responding negatively or pushing back against something.
  • Example: "He reacted against the proposed changes."