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Word of the Day Tuesday, June 9, 2026

diatom

/daɪˈætəm/ noun · British & US
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What does diatom mean?

noun

A type of algae that is a major component of aquatic plankton, typically having a glassy or siliceous cell wall. Diatoms are found in both freshwater and saltwater environments.

Example

"The diatoms in the lake were an important food source for the local fish population."

Definition generated by AI and curated by RJS Tech Solutions LLP.

Synonyms for diatom

Rhymes with diatom

Etymologically related