Definition of brown algae in English:

plural noun

• A large group of algae that are typically olive brown or greenish in colour, including many seaweeds. They contain xanthophyll in addition to chlorophyll.

  Class Phaeophyceae, division Heterokontophyta (also phylum Heterokonta, kingdom Protista); formerly division Phaeophyta

  Example sentences

  • ‘Some are featureless and probably represent bacterial mats, but a few have a stalk and seem to represent some sort of seaweed-like algae, possibly brown algae (phaeophytes).’
  • ‘Ribbed mussels, green algae (Enteromorpha spp.) and species of brown algae (Ascophyllum and Fucus) are often seen at the base of the mats of Spartina.’
  • ‘When presented with five macroalgal species concurrently, H. sanguineus preferred green algae to red and brown algae.’
  • ‘The largest of the chromists are the Phaeophyta, the brown algae - the largest brown algae may reach over 30 meters in length.’
  • ‘First, although the ‘algae’ are not monophyletic, the red algae, brown algae, etc., are monophyletic groups.’