Chlorophyceae vs class Chlorophyceae

Chlorophyceae and class Chlorophyceae both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chlorophyceae	Yes	No	No	No
class Chlorophyceae	Yes	No	No	No

As nouns, Chlorophyceae and class Chlorophyceae are synonyms defined as:

Chlorophyceae and class Chlorophyceae: algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments

Chlorophyceae (noun)	class Chlorophyceae (noun)
algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments	algae distinguished chiefly by having flagella and a clear green color, their chlorophyll being masked little if at all by other pigments