Search Result for "pyrex": 
Wordnet 3.0

NOUN (1)

1. a borosilicate glass with a low coefficient of expansion; used for heat-resistant glassware in cooking and chemistry; 



WordNet (r) 3.0 (2006):

Pyrex
    n 1: a borosilicate glass with a low coefficient of expansion;
         used for heat-resistant glassware in cooking and chemistry