infectious disease

[ in-fek-shuhs di-zeez ]

  1. a disease caused by a bacterium, virus, or other microorganism, and often spreading by contact between individuals or by a vector such as an insect: Chicken pox and cholera are infectious diseases.Abbreviation: ID

Origin of infectious disease

First recorded in 1570–80

Words Nearby infectious disease Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use infectious disease in a sentence

Scientific definitions for infectious disease

infectious disease

  1. A disease caused by a microorganism or other agent, such as a bacterium, fungus, or virus, that enters the body of an organism.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.