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resin duct

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noun Botany.
  1. a tube or duct in a woody stem or a leaf, especially in conifers, lined with glandular epithelium that secretes resins.

Origin of resin duct

First recorded in 1880–85
Also called resin canal.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018