noun as in strong fondness

Strongest matches

contagiousness, infectivity

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Example Sentences

Example:She was more concerned about the contagiousness of the flu than its actual severity.

Definition:The ability or tendency to infect or contaminate, either physically or metaphorically.

From contagiousness

Example:The infectivity of the bacteria was reduced by the new antibiotic treatment.

Definition:The ability to cause infection or disease.

From infectivity