class Cyanobacteria vs Cyanophyceae

class Cyanobacteria and Cyanophyceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
class Cyanobacteria	Yes	No	No	No
Cyanophyceae	Yes	No	No	No

As nouns, class Cyanobacteria and Cyanophyceae are synonyms defined as:

class Cyanobacteria and Cyanophyceae: photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae

Other synonyms of class Cyanobacteria include class Cyanophyceae.

class Cyanobacteria (noun)	Cyanophyceae (noun)
photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae	photosynthetic bacteria found in fresh and salt water, having chlorophyll a and phycobilins; once thought to be algae: blue-green algae