Stoma (Noun)
Meaning 1
A mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ).
Classification
Nouns denoting body parts.
Hypernyms
Related Words
Meaning 2
A minute epidermal pore in a leaf or stem through which gases and water vapor can pass.
Classification
Nouns denoting plants.
Examples
- The stomata on the underside of the leaf allow for gas exchange and transpiration to occur.
- Each stoma is surrounded by guard cells that open and close to regulate the rate of gas exchange.
- The density of stomata on a leaf can affect its ability to absorb carbon dioxide and release oxygen.
- In hot and dry conditions, the stomata on a leaf will often close to conserve water and prevent dehydration.
- The shape and size of the stomata on a plant can vary depending on the species and its environment.