Search Result for "sima": 
Wordnet 3.0

NOUN (1)

1. rock that form the continuous lower layer of the earth's crust; rich in silicon and magnesium; 



The Collaborative International Dictionary of English v.0.48:

Sima \Si"ma\, n. (Arch.)
   A cyma.
   [1913 Webster]


WordNet (r) 3.0 (2006):

sima
    n 1: rock that form the continuous lower layer of the earth's
         crust; rich in silicon and magnesium