(Irish) one of a group of sea demons sometimes associated with the hostile power of nature.(noun)
Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)
Use "fomorian" in a sentence
"Published in 1989/90 in 2000AD, this was the capstone of Mills saga of Celtic warrior Slaine where he would become High King of Ireland and defeat the fomorian and drune invaders."