Pyrex
[pahy-reks] /ˈpaɪ rɛks/
Trademark.
1.
a brand name for any of a class of heat- and chemical-resistant glassware products of varying composition used for cooking.
/ˈpaɪrɛks/
noun
1.
trademark
n.
1915, proprietary name (Corning Glass Works, Corning, N.Y.), arbitrary coinage, in which eager etymologists see implications of Greek pyr “fire” and perhaps Latin rex “king;” but the prosaic inventors say it was based on pie (n.1), because pie dishes were among the first products made from it. The -r- is purely euphonious.
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