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radicle

Line breaks: rad|icle
Pronunciation: /ˈradɪk(ə)l
 
/

Definition of radicle in English:

noun

Botany
1The part of a plant embryo that develops into the primary root.
Example sentences
  • A caryopsis was considered germinated when the radicle pierced the seed coat, approximately 10 h after the start of imbibition.
  • Of seeds that produced radicles, epicotyls emerged in 100% of them following 12 wk of cold stratification and subsequent movement to warmer temperatures.
  • Each week, the leaves were lifted, and seeds with an emerged radicle were counted as germinated and removed from the flats.
1.1 Anatomy A root-like subdivision of a nerve or vein.
Example sentences
  • The parasite radicle then thickens to form a vascular connection - a haustorium - between the parasite and the host.

Origin

late 17th century: from Latin radicula, diminutive of radix, radic- 'root'.

Derivatives

radicular

1
Pronunciation: /rəˈdɪkjʊlə/
adjective ( Anatomy )
Example sentences
  • Direct injection of fibrocartilage into these vessels during episodes of increased pressure, with retrograde travel into a radicular artery, may explain emboli seen in younger patients.
  • Also, Lagrimini et al. have shown that overexpression of an anionic peroxidase in roots results in a significant decrease in radicular system development and in enhanced plant wilting.
  • Finally, a neurovascular examination should be performed to rule out referred pain secondary to radicular symptoms or vascular causes.

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