ứng động
Definition
- Noun (Botany):
- Nastic movement: A type of plant movement in response to a non-directional stimulus (such as changes in light, temperature, or touch), where the direction of movement is not determined by the direction of the stimulus. This is a common scientific translation for "ứng động".
Usage Examples
- Noun:
- Sự đóng mở của hoa tulip theo nhiệt độ là một ví dụ về ứng động. (The opening and closing of tulip flowers in response to temperature is an example of nastic movement.)
- Ứng động khác với hướng động vì nó không phụ thuộc vào hướng của kích thích. (Nastic movement differs from tropism because it does not depend on the direction of the stimulus.)
Advanced Usage
"Ứng động sinh trưởng": Growth-mediated nastic movement. Movement caused by differential growth rates in plant tissues.
- Sự vận động nở hoa thường là một ứng động sinh trưởng. (The movement of flower blooming is often a growth-mediated nastic movement.)
"Ứng động sức trương": Turgor-mediated nastic movement. Rapid movement caused by changes in water pressure (turgor) within plant cells.
- Cây trinh nữ (cây xấu hổ) cụp lá lại là một ứng động sức trương. (The folding of leaves in the mimosa plant (touch-me-not) is a turgor-mediated nastic movement.)
Variants and Related Words
- Hướng động (n): Tropism. A directional growth movement in plants in response to a directional stimulus (e.g., phototropism - growth towards light).
- Vận động ở thực vật (n): Plant movement. The general term for all types of movements in plants.
Synonyms
- Nastic movement: The direct scientific synonym.
- Nasty (obsolete): An older, less common term for the same concept.
Notes
- "Ứng động" is a specialized botanical term. It is not used in everyday conversation but is standard in scientific and academic contexts related to plant physiology.
- The reference definition "nastie" is the French term for this phenomenon, aligning with the international scientific term "nasty" or "nastic movement".