lehr

/lɛr/
noun
  1. A long, heated oven used in glassmaking to slowly cool glass objects so they do not crack.
    • The glassblower placed the hot vase into the lehr to cool it evenly.
    • Without a lehr, the glass would shatter from the sudden temperature change.
    • Workers carefully monitored the temperature inside the lehr all night.
Synonyms
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