Definitions for "Tethys"
the sea that separated Gondwanaland from Laurasia.
the sea that existed for long periods of geologic time that separated the northern and southern continental land masses of the eastern hemisphere. Its trace ran through the Mediterranean area basically along the present day Alpine - Himalayan orogenic belt.
A moon of Saturn was discovered by Giovanni Cassini in 1684. Tethys also is designated as "Saturn III". In Greek mythology, Tethys was a Titaness who was sister and wife to Oceanus and mother to the Rivers: nile, Alpheus and Maeander.
A genus of a large naked mollusks having a very large, broad, fringed cephalic disk, and branched dorsal gills. Some of the species become a foot long and are brilliantly colored.
type genus of the family Aplysiidae