What does LEHRS mean?

lehrs 1. Parts of Speech: noun
2. Definitions: a type of oven used in glassmaking to cool and anneal glass objects
3. Pronunciations: US: /lɛrz/, UK: /lɜːz/
4. Origin and Usage: The word "lehr" is derived from the German word "Lehr" which means "teaching". It was first used in English in the 19th century to refer to a type of oven used in glassmaking. Lehrs are used to cool and anneal glass objects, making them less brittle and more durable. They are an essential part of the glassmaking process, and are still used today in modern glass factories.
5. Synonyms: annealing oven, glass oven
6. Related Words: glair, haler, hares, heals, hears
7. Example Sentences:

• The glassblower carefully placed the hot glass object in the lehr to cool and anneal it.
• The lehr is an essential part of the glassmaking process.
• After the glass objects have been formed, they are placed in the lehr to cool and become stronger.