Noun
A state whose power derives from its naval or commercial supremacy on the seas.
Maritime supremacy.
Source: en.wiktionary.orgAthenian maritime power is the first example of thalassocracy in world history. Source: Internet
It was a thalassocracy and did not extend its influence far beyond the coastal areas of the islands of Southeast Asia. Source: Internet
Rivalry with Athens (5th century BC) The known history of Aegina is almost exclusively a history of its relations with the neighbouring state of Athens, which began to compete with the thalassocracy of Aegina about the beginning of the sixth century BC. Source: Internet
The empire was a thalassocracy or maritime power that extended its influence from island to island. Source: Internet