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Definitions

infectious

[in-fek-shuhs] / ɪnˈfɛk ʃəs /


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.

These included initiatives addressing pandemic preparedness and outbreak response, health security, and infectious disease treatment.

From Slate • Jun. 9, 2026

In Paris, Chwalinska has played with infectious freedom and joyful creativity, beating two seeded players and Olympic champion Zheng Qinwen along the way.

From BBC • Jun. 3, 2026

She has become more infectious the more I play her.

From Los Angeles Times • May 28, 2026

"When an animal has become sick from an infection their immune system is compromised which increases the risk of further disease exacerbation from other infectious agents that may have once been subclinical," Mishin explained.

From Science Daily • May 26, 2026

Tina was a bighearted policy wonk with an infectious laugh and more hustle than just about anyone I knew.

From "Becoming" by Michelle Obama




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