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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.

“The National Institutes of Health was previously, and for decades, the biggest funder of biomedical research against infectious diseases and other threats to public health globally,” Herder said.

From Salon • May 30, 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

Health experts warn that touching the body of someone who died from Ebola can spread the virus because bodily fluids remain highly infectious after death.

From BBC • May 23, 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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