Proper noun
A Babylonian goddess who personifies the sea, considered the monstrous embodiment of primordial chaos.
(in the works of Zecharia Sitchin) A supposed planet once located between Mars and Jupiter.
Source: en.wiktionary.orgAfter dispatching Tiamat with the "arrows of his winds" down her throat and constructing the heavens with the arch of her ribs, Enlil places her tail in the sky as the Milky Way, and her crying eyes become the source of the Tigris and Euphrates. Source: Internet
The capital asteroid, Tiamat, houses one of the largest Kzin populations in Known Space. Source: Internet
To date four officially licensed products set in the Forgotten Realms have been published: Hoard of the Dragon Queen (September 2014), Rise of Tiamat (October 2014), Princes of the Apocalypse (April 2015) and Out of the Abyss (September 2015). Source: Internet