rootlet
/'ru:tlit/
Học thuậtThân thiện
Definition
Noun: A very small root, or a small branch or division of a larger root.
Usage
A "rootlet" is a specific botanical term used to describe the finest, hair-like structures at the ends of a root system. It is the part of the root that is primarily responsible for absorbing water and nutrients from the soil.
Examples
- The delicate rootlets of the seedling spread through the moist soil.
- Under the microscope, you can see the intricate network of rootlets.
- The plant's ability to absorb minerals depends on the health of its rootlets.
Advanced Usage
- In Botany: The term is used precisely to distinguish the smallest absorptive roots from the larger, structural primary and secondary roots.
- Figurative Use: While rare, "rootlet" can be used metaphorically to describe a small, initial part of something that may grow, such as an idea. (e.g., )
Variants and Related Words
- Root (n.): The main underground part of a plant that anchors it and absorbs water and minerals.
- Root hair (n.): A microscopic, hair-like outgrowth from a rootlet that significantly increases the surface area for absorption.
- Radicle (n.): The part of a plant embryo that develops into the primary root.
Synonyms
- Fibril (especially in a botanical context)
- Root fiber
Antonyms
- Taproot (a large, central, dominant root)
Noun
- small root or division of a root