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Definitions

reactivity

[ree-ak-tiv-i-tee] / ˌri ækˈtɪv ɪ ti /




Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"Also, prolonged vibration changes the reactivity of the neuromuscular spindles and alters the signal sent to the brain."

From Science Daily • Jan. 8, 2026

Paris police chief Patrice Faure paid tribute to "the reactivity and the mobilisation" of the investigators that led to the arrest of the suspect.

From Barron's • Dec. 27, 2025

“We told Jack we needed a special person to handle this dog,” says Padilla, referencing Felisha’s fear-based reactivity.

From Los Angeles Times • Jul. 21, 2025

"We currently do not know if any high surface reactivity – if it exists – persists in the lunar dust," he warned.

From Salon • Mar. 31, 2025

Too much reactivity and we would spontaneously combust.

From "The Gene" by Siddhartha Mukherjee