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vascular ray

vascular ray

9.8
A thin layer of cells in a plant stem that moves water and food sideways
  • noun
  • /ˈvæskjʊlər reɪ/
  • Specialized
translation icon : rayo vascular
  • When viewed in cross-section, the vascular ray appears as a thin, radial stripe between the circular bundles.

Examples

  • The study highlighted how the width of the vascular ray can affect a plant's ability to store water.

  • In many plants, vascular rays help facilitate water movement.

  • In woody plants, vascular rays play an essential role in transporting nutrients across stem tissues.

  • The vascular ray is essential for plants.

  • In woody plants, vascular rays play an essential role in transporting nutrients across stem tissues.

  • The study highlighted how the width of the vascular ray can affect a plant's ability to store water.

  • When viewed in cross-section, the vascular ray appears as a thin, radial stripe between the circular bundles.

Synonyms

medullary ray
vsvascular ray
  • Specialized
9.9

A band of cells in a stem or root that moves water and nutrients sideways

is formed from vascular tissue instead of parenchyma cells

Surface Forms

vascular ray singular
vascular rays plural

Morphology

vascular + ray

The phrase is compositionally built from 'vascular' (relating to vessels) and 'ray' (a radiating/plant tissue), so a learner who knows both words can infer it refers to a radiating plant structure that contains vascular tissue. However, the specific anatomical sense—a plate-like layer separating and connecting vascular bundles and enabling radial transport—is technical and not fully predictable from the constituents alone, so it is only partially transparent to a B1 learner.

Etymology

Vascular ray comes from how the plant tissue looks and works. The word vascular means tubes that carry water and food, and ray refers to the thin lines or 'spokes' you see when you look at a tree's cut end. Those thin lines move water and nutrients across the stem, so the name links the look of the tissue to its job.