noun · neutral

algae

/ˈældʒiː/AL·gae

Band 6-7speakingtask2

simple aquatic plants or plant-like organisms, often found in water and sometimes causing blooms

Examples

Algae blooms can deplete oxygen in lakes and kill fish.

Warm water and excess nutrients encourage algae growth.

Some algae are used as food supplements or in biofuel research.

Band 8 sentence

Excessive nutrient runoff has triggered recurrent algal blooms in the lake, creating dead zones each summer.

Collocations

  • algal bloom
  • toxic algae
  • algae growth

Word family

alga noun (singular, scientific)algal adjective

Common mistakes

an algaealgae

algae bloomalgal bloom

Say it for a higher band

5pond plants6algal7+algae

Synonyms

seaweed

Easily confused

seaweed

The beach was covered in seaweed after the storm, but microscopic algae were the cause of the red tide.

Related words

Learn this word with the rest of its set, and get reminded at the right time.

In Nature & Animals

Learn it with its set