Stoma
- Pronunciation
- /STOH-mah/
- Category
- Botany
- Singular
- Stoma
- Plural
- Stomata
Definition
Minute pores found on the surface of plant tissues that regulate gas exchange (CO2, O2) and water loss through transpiration.
Etymology
From Greek 'stoma', meaning 'mouth'.
Example
Stomata play a crucial role in photosynthesis and transpiration.
Related Terms
- Photosynthesis
- Transpiration
- Guard cells
Usage Notes
Stomata are typically surrounded by guard cells that regulate their opening and closing.