algae
nounNAmE//ˈældʒi//
[uncountable, plural] (alga NAmE//ˈælɡə//
) (technology)NAmE//ˈælɡəl//
adjective [only before noun] algal blooms/growthSee algae in the Oxford Advanced Learner's DictionaryCheck pronunciation: algae
Definition of algae noun from the Oxford Advanced American Dictionary