Search Result for "thetis": 
Wordnet 3.0

NOUN (1)

1. (Greek mythology) one of the 50 Nereids; mother of Achilles by Peleus; 



WordNet (r) 3.0 (2006):

Thetis
    n 1: (Greek mythology) one of the 50 Nereids; mother of Achilles
         by Peleus