nhật hướng động
Hiện tượng nhật hướng động khiến những bông hoa hướng dương quay về phía mặt trời.
Definition
- Noun (Biology, Archaic):
- Heliotropism: The directional growth or movement of a plant or part of a plant in response to the direction of sunlight. This is an older, specialized term in botany.
Usage Examples
- Noun:
- Hiện tượng nhật hướng động giúp hoa hướng dương quay theo mặt trời. (The phenomenon of heliotropism helps sunflowers turn to follow the sun.)
- Nhật hướng động là một ví dụ về tính hướng sáng ở thực vật. (Heliotropism is an example of phototropism in plants.)
Advanced Usage
- The term "nhật hướng động" is considered archaic in modern scientific Vietnamese. The more common contemporary term for this and related concepts is "tính hướng sáng" (phototropism).
Variants and Related Words
- Tính hướng sáng (n): Phototropism. The general growth response of a plant to light, which includes heliotropism as a specific form.
- Tính hướng sáng dương khi cây vươn về phía ánh sáng. (Positive phototropism occurs when a plant grows towards the light.)
Synonyms
- Heliotropism: The specific directional growth or movement following the sun's path.
- Phototropism: The broader category of growth in response to a light source.
Notes on Usage
- "Nhật hướng động" is a specialized, classical compound word: (sun), (direction), (movement). It is rarely used in everyday language and is primarily found in older botanical texts or very formal scientific contexts. For general communication, "tính hướng sáng" is strongly preferred.