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Definitions

algae

[al-jee] / ˈæl dʒi /
NOUN
rootless, leafless plants living in water
Synonyms


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.

Although fossils had previously been discovered in eastern Yunnan, they were limited to algae and did not include animal remains.

From Science Daily • Apr. 6, 2026

Some cichlids evolved into predators, while others specialized in feeding on algae, sifting sand, or consuming plankton.

From Science Daily • Apr. 1, 2026

Starting in the late 2000s, the company ran a nearly ubiquitous series of television commercials touting the potential to produce a biofuel from algae that could one day fuel “trucks, buses, boats, cars, even airplanes.”

From The Wall Street Journal • Mar. 31, 2026

“Our algae research was driven by the pursuit of innovation, which has been at the core of ExxonMobil’s success for well more than a century,” an Exxon spokesman said.

From The Wall Street Journal • Mar. 31, 2026

At night, by some chemical process unknown to me but obviously inhibited by sunlight, the predatory algae turned highly acidic and the ponds became vats of acid that digested the fish.

From "Life of Pi" by Yann Martel