tan heat

English dictionary entry

Meanings

noun
  1. heat generated by the fermentation of tan bark waste; generally used in horticulture as a source of bottom heat for potted plants in greenhouses; the application of tan heat to greenhouse plants, mainly during the 18-19th century.
  2. a bed of tan bark waste used as a source of mild bottom heat for potted plants in greenhouses or hothouses.

Word forms

tan heat
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