tuber
nounUK /ˈtjuː.bər/
US /ˈtuː.bɚ/
A tuber is a fat part of a plant that grows under the ground and stores food.
We dug up the potatoes, which are a kind of tuber, from the garden.
RELATED WORDS
OTHER MEANINGS
2. A rounded swelling or lump on a plant or body part.
The doctor felt a small tuber on the stem of the plant.
3. A thickened underground stem, such as a potato, that stores nutrients.
The potato is a classic example of a stem tuber.
4. A small rounded projection on a bone or organ.
The X-ray showed a tuber on the bone near the joint.