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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.

Coral's survival depends on a special relationship with a kind of algae.

From Barron's • May 22, 2026

But for reasons that still elude scientists, this arrangement falls apart when seawater warms too much and the algae leave or are expelled.

From Barron's • May 22, 2026

These nutrients make "harmful" blue-green algae more likely which can be dangerous to people and animals.

From BBC • May 20, 2026

Scientists studying ancient microfossils from Brazil have discovered that structures once believed to be traces left behind by tiny animals were actually formed by communities of microscopic bacteria and algae.

From Science Daily • May 12, 2026

But life did not evolve much beyond blue-green algae for three billion years, which suggests that large lifeforms with specialized organs are hard to evolve, harder even than the origin of life.

From "Cosmos" by Carl Sagan




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