Algae (, ; : alga ) is an informal term for a large and diverse group of photosynthetic, eukaryotic organisms.
ˈælɡiː, ; : ˈælɡə ɪz ɐn ɪnfˈɔːɹməl tˈɜːm fɚɹə lˈɑːɹdʒ ænd daɪvˈɜːs ɡɹˈuːp ʌv fˌoʊɾoʊsɪnθˈɛɾɪk, jˌuːkɐɹɪˈɑːɾɪk ˈɔːɹɡənˌɪzəmz.