Search Result for "diapir": 
Wordnet 3.0

NOUN (1)

1. a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata;


WordNet (r) 3.0 (2006):

diapir n 1: a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata