ecosystem

noun

eco·​sys·​tem ˈē-kō-ˌsi-stəm 

ˈe-kō-

plural ecosystems

1

: the complex of a community of organisms and its environment functioning as an ecological unit

That influx of fresh water alters the ocean's salinity near the seafloor, a factor that influences the makeup of the ecosystems in those places.

—Sid Perkins

Global warming, if it proceeds as many scientists predict, threatens to undo decades of conservation work and could mean the destruction of the monarch butterfly, the edelweiss, the polar bear and innumerable other species living in fragile ecosystems, an emerging body of scientific evidence suggests.

—William K. Stevens

2

: something (such as a network of businesses) considered to resemble an ecological ecosystem especially because of its complex interdependent parts

Newspaper layoffs have ripple effects for the entire local news ecosystem because, as the Congressional Research Service noted, television, radio and online outlets often "piggyback on reporting done by much larger newspaper staffs."

—David Sirota

Lots of Walmart customers are underserved by banks and other financial institutions, [Daniel] Eckert says; the company's experiments with finance-related products and services help customers "not only save money but also have access to a financial ecosystem they were crowded out from."

—Rob Walker

ecosystemic

ˌē-kō-si-ˈste-mik 

ˌe-kō-

adjective

The Amazon invariably evokes superlatives and often hyperbole. Stock images such as river dimensions and biotic variety are now joined with notions of forest biomass and ecosystemic complexity.

—Kent Mathewson

The women of Sex and the City occasionally argued, sure, but their ecosystemic purpose—to be there for their friends as they date and search and marry—was always extremely clear.

—Megan Garber

Did you know?

The Environment of Ecosystem

For the now-ubiquitous prefix eco-, we can thank the great German zoologist Ernst Haeckel, who in 1866 coined the term oekologie from the Greek oikos, meaning “home, place to live.” Haeckel was thinking primarily of the “homes” of animals, but by the time the word translated into English in 1875 (initially spelled “oecology”), its meaning had broadened to embrace plant habitats as well. The related term ecosystem was proposed by the British botanist Arthur Tansley, 60 years after one of his own professors first translated Haeckel’s oekologie. It may have been ecosystem, which treats eco- as a prefix to a standard English word, that gave English speakers permission to do the same in coining a host of other terms: ecosphere, ecotour, eco-friendly, and all the rest. Meanwhile, ecosystem itself has been appropriated freely in all kinds of contexts well removed from the natural environment: the “app ecosystem,” the “education ecosystem,” the “startup ecosystem,” the “pop-culture ecosystem,” the “mobile ecosystem,” the “biking ecosystem,” and so forth.

Examples of ecosystem in a Sentence

Recent Examples on the Web

Grow Natives Native plants are indigenous species that grow in a specific region or ecosystem. —Lauren David, Southern Living, 20 Dec. 2024

This is where manufacturers, service providers and the mobile ecosystem can collaborate. —Kevin Gillan, Forbes, 20 Dec. 2024

This week's epic fight over funding the government captures the power — and flaws — of the new information ecosystem. —Axios, 20 Dec. 2024

Healing the ecosystem so the otters could come back had the win-win effect of helping manage an invasive species. —Elizabeth Weise, USA TODAY, 20 Dec. 2024

Word History

First Known Use

1935, in the meaning defined at sense 1

Kids Definition

ecosystem

noun

eco·​sys·​tem ˈē-kō-ˌsis-təm 

ˈek-ō-

: a system made up of an ecological community of living things interacting with their environment especially under natural conditions

Medical Definition

ecosystem

noun

eco·​sys·​tem -ˌsis-təm 

: the complex of a community and its environment functioning as an ecological unit in nature