What does waterborne mean?
Waterborne means carried, spread, or transported by water. Its most familiar use is in public health, where it describes illnesses caused by pathogens transmitted through contaminated drinking, bathing, or recreational water. Cholera, typhoid, and hepatitis A are among the diseases commonly described as waterborne, although the precise mechanism of transmission can vary. The word can also refer to substances or materials transported by water, such as pollutants, debris, or sediment. In these uses, waterborne emphasizes the medium through which something travels rather than the fact that it is simply wet. The term is especially useful because waterborne hazards may be invisible: contamination can affect many people through a shared supply without being obvious at the point of exposure. Waterborne is a standard adjective in British and American English, and the hyphenated form water-borne is also widely understood.
adjectiveCarried, spread, or transported by water. In public-health contexts, it most often describes a disease, pathogen, or other harmful substance transmitted through contaminated water.
- Transmitted or spread through contaminated water.
- Carried or transported by water.
"The health agency warned that cholera is a waterborne disease."
"The health agency warned that cholera is a waterborne disease."
"The storm carried waterborne debris far downstream."
Waterborne diseases can travel invisibly through a shared drinking supply, turning a contaminated source into a public-health emergency.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does waterborne come from?
Waterborne is a native English compound formed from water and borne, the past participle of bear. Water is an Old English word inherited unchanged in its basic sense, while borne ultimately comes from Old English beran, the ancestor of modern bear and related forms such as born and birth. The compound’s medical and transport senses developed as English speakers began systematically describing disease transmission and the movement of substances by water.
How waterborne is actually used
Waterborne is most common in medical, environmental, and safety contexts. It is usually used as an adjective before a noun, such as “waterborne disease,” and the spelling “water-borne” is also accepted.
Easily confused with waterborne
A waterborne disease is transmitted through contaminated water, whereas an airborne disease is transmitted through the air.