bundle sheath

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noun Botany.

a layer of cells in plant leaves and stems that surrounds a vascular bundle.

Nearby words

  1. bundle buggy,
  2. bundle of his,
  3. bundle of isoglosses,
  4. bundle of nerves,
  5. bundle scar,
  6. bundle up,
  7. bundle-branch block,
  8. bundled,
  9. bundling,
  10. bundobust

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Science definitions for bundle sheath

bundle sheath

A layer or region of compactly arranged cells surrounding a vascular bundle in a plant. The bundle sheaths regulate the movement of substances between the vascular tissue and the parenchyma and, in leaves, protect the vascular tissue from exposure to air.
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