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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.

The Appalachian springsnail is basically a tiny aquatic cow that mows over algae and other organic matter, sucking them up and extracting whatever nutrients it can.

From Slate • Apr. 27, 2026

The Plymouth Marine Laboratory has been using equipment including satellites and drones to monitor the waters, testing levels of viruses and bacteria, and looking at the numbers of different species of algae.

From BBC • Apr. 15, 2026

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

From Science Daily • Apr. 1, 2026

Exxon Mobil scientists told one of the company’s top strategic-planning executives in early 2020 that the algae biofuels program was falling short of its stated goals.

From The Wall Street Journal • Mar. 31, 2026

I tried every­thing but the worms, including the algae.

From "Life of Pi" by Yann Martel




Vocabulary lists containing algae