hấp thủy kế
Definition
- Noun:
- Potometer: A scientific instrument used primarily in botany to measure the rate of water uptake (transpiration) by a plant, typically a cut shoot. The name is derived from the Vietnamese words "hấp thụ" (to absorb) and "kế" (meter/gauge).
Usage Examples
- Noun:
- Các nhà sinh vật học sử dụng hấp thủy kế để đo lượng nước cây tiêu thụ. (Biologists use a potometer to measure a plant's water consumption.)
- Thí nghiệm với hấp thủy kế cho thấy tốc độ thoát hơi nước thay đổi theo ánh sáng. (The experiment with the potometer showed that the transpiration rate changes with light.)
Advanced Usage
- The term is a technical, scientific compound noun. Its usage is almost exclusively confined to academic, educational, or research contexts in biology and plant physiology.
Variants and Related Words
- Máy đo thoát hơi nước: A more descriptive term meaning "transpiration measurement device," which can be synonymous with a potometer.
- Dụng cụ đo hút nước của cây: A phrase meaning "instrument for measuring plant water uptake."
Synonyms
- Potometer: The direct and most accurate English equivalent.
- Transpirometer: A broader term for an instrument measuring transpiration, which may function similarly.
Notes on Meaning
- The instrument does not directly measure transpiration but measures water uptake, which is used as a close approximation of the transpiration rate under controlled conditions.