Diatom
6 lettersnounrareUpdated June 2026
Definition
A microscopic single-celled alga found in marine and freshwater environments, characterised by a cell wall made of silica.
“The water sample teemed with diatoms, their glassy shells visible under the microscope.”
Pronunciation
Syllables
di·a·tom
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Synonyms
Word Game Tips
Wordle
Three vowels (I, A, O), ends in -TOM, a recognisable pattern, D and M are solid starting letters
Scrabble
All low-value tiles but the -ATOM suffix is memorable, valid specialist vocabulary word
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