TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

medullary ray [2 records]

Record 1 2016-01-19

English

Subject field(s)
  • Paleontology
  • Botany
Universal entry(ies)
DEF

... a ray of primary origin in the stele of various cryptogamous and dicotyledonous vascular plants that extends outward from the medulla often separating the vascular bundles ...

French

Domaine(s)
  • Paléontologie
  • Botanique
Entrée(s) universelle(s)
CONT

Rayons médullaires d'une tige : disposés autour de son axe médullaire.

Spanish

Save record 1

Record 2 1997-06-18

English

Subject field(s)
  • Plant Biology
  • Xylology (The Study of Wood)
DEF

A primary tissue composed of radiating bands of parenchyma cells extending between the vascular bundles of herbaceous dicotyledonous stems and connecting the pitch with the cortex.

CONT

running at right angles to these fibers [composed of cellulose] are other groups of cells known as medullary rays.

Key term(s)
  • wood ray

French

Domaine(s)
  • Biologie végétale
  • Xylologie (Étude des bois)
DEF

Regroupement de cellules allongées disposées radialement comme un ruban à travers les bois feuillus.

CONT

cette croissance de l'arbre ne s'opère pas suivant des anneaux continus; des intervalles [...] se produisent, convergeant vers l'axe de l'arbre : ces intervalles sont appelés rayons médullaires ou rayons de bois.

OBS

rayon médullaire; rayon ligneux : termes retenus par le Comité technique de la terminologie française du bois de l'Association canadienne de normalisation.

Spanish

Save record 2

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