Definition of radicel in US English:

radicel

noun

Botany
rare
  • A fine or fibrous root; a secondary or adventitious root, a rootlet.

Origin

Early 19th century; earliest use found in John Lindley (1799–1865), botanist and horticulturist. From French radicelle rootlet from classical Latin rādīc-, rādīx + French -elle.

Pronunciation

radicel

/ˈradɪsɛl/