What is "superion"

n. (context chemistry English) An ion, consisting of a large cluster of atoms, in which the charge is spread over many atoms

The Aerialbots (called Airbots in Japan and Aérobots in France) are a group of Autobots that transform into aircraft and combine to form the giant robot Superion. They were introduced into the Transformers toyline in 1985 and sold as a Superion gift set, and then sold separately in 1986 in most department stores (e.g., Toys R' Us, Sears, Kay-Bee Toys). Their archenemies are the Decepticon car team the Stunticons.