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- Dictionaryradicle/ˈradɪkl/
noun
- 1. the part of a plant embryo that develops into the primary root.
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noun
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In botany, the radicle is the first part of a seedling to emerge from the seed during the process of germination. The radicle is the embryonic root of the plant, and grows downward in the soil (the shoot emerges from the plumule). Above the radicle is the embryonic stem or hypocotyl, supporting the cotyledon(s). Wikipedia