infectiousness
/ɪnˈfɛkʃəsnəs/
noun
- The quality of being able to spread quickly and easily from one person to another, especially regarding a disease or emotion.
- Scientists studied the infectiousness of the new virus to predict its spread.
- The infectiousness of the flu makes it hard to contain during winter.
- The infectiousness of her laughter made the party unforgettable.
Synonyms