Class Asteroidea is a taxonomic class that is used to designate starfish or sea stars. There are several other synonyms that are used to refer to Class Asteroidea. For example, Asterozoa is another name for this class. This name is derived from the Greek words 'aster' which means 'star' and 'zoa' which means 'animals'. In addition, the name Stelleroidea is also used as a synonym for this class. This name is derived from the Latin word 'stella' which means 'star'. Other synonyms include Eleutherozoa, Radiata, and Pentamerida. Despite the different names used to describe Class Asteroidea, they all refer to the same group of marine animals that have radial symmetry and multiple arms protruding from their central body.