1The part of a plant embryo that develops into the primary root.
radicle, rhizome, rootstock, tuber, tap root, rootletView synonyms
- ‘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.’
- ‘Roots were determined to have protruded when the radicle had split the endosperm at which point it was clearly visible.’
- ‘The micropyle is the pore through which the radicle emerges during seed germination.’
- 1.1Anatomy A root-like subdivision of a nerve or vein.
- ‘The parasite radicle then thickens to form a vascular connection - a haustorium - between the parasite and the host.’
Late 17th century: from Latin radicula, diminutive of radix, radic- root.
We take a look at several popular, though confusing, punctuation marks.