algae
🇬🇧 /ˈælgi/
🇺🇸 /ˈældʒiː/
📖 Definitions
-
noun
Plural of alga; a large and diverse group of simple, typically aquatic, photosynthetic organisms ranging from unicellular forms to large seaweeds.
🔗 Details
Word forms
countable / uncountable
Plural: algae
Collocations
algal bloomblue-green algaealgae growthalgae bloomgreen algaered algae
Derivatives
algalalgologyalgologist
Synonyms
seaweedphytoplanktonpond scum
Commonly confused
alga
EN: 'Alga' is the singular form referring to one organism; 'algae' is the plural form, though it is often mistakenly used as a singular in everyday speech.
Spelling tips
EN: The singular is 'alga' and the plural is 'algae' (Latin pattern). A common error is treating 'algae' as singular (e.g., 'the algae is' instead of 'the algae are' in formal/scientific writing), though mass-noun usage is accepted in informal contexts.
💬 Examples
-
The pond was covered in a thick layer of green algae.