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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.

Hsiao plans to explore how these dietary changes influence the human gut microbiome and whether they could also help defend against other infectious bacteria.

From Science Daily • Apr. 7, 2026

Nacua became known for his infectious enthusiasm and ability to catch almost anything Rams MVP quarterback Matthew Stafford threw his way.

From Los Angeles Times • Apr. 2, 2026

Bellamy's rambunctious and infectious approach to his playing career made him one of the Premier League's most effective forwards.

From BBC • Mar. 24, 2026

The book also documents how poorly prepared government agencies were in dealing with infectious diseases, how social media amplified fears and how hysteria overtook science.

From The Wall Street Journal • Mar. 20, 2026

Music’s tempo is rather infectious, and children respond physically to both fast and slow speeds.

From "Music and the Child" by Natalie Sarrazin