| 释义 |
Definition of hydathode in English: hydathodenoun ˈhʌɪdəθəʊdˈhīdəˌTHōd Botany A modified pore, especially on a leaf, which exudes drops of water. 〔植〕（尤指叶子表面的）排水器，水囊 Example sentencesExamples - Another way of disposing of excess salt may be to lose salt from the hydathodes, which release water at times of low transpirational water loss, such as at night.
- The hydathode is a specialized structure involved in secretion of water under high humidity.
- Indeed, activity, although low, was detected in cotyledon veins and tips and also in leaf veins, trichomes, and hydathodes.
- The three main veins fused at the leaf tip leading to an epithem hydathode.
- We analyzed the results as an estimate of the number of hydathodes, which is known to differ between juvenile and adult leaves.
Synonyms opening, orifice, aperture, hole, outlet, inlet, vent
OriginLate 19th century: from Greek hudōr, hudat- 'water' + hodos 'way'. Definition of hydathode in US English: hydathodenounˈhīdəˌTHōd Botany A modified pore, especially on a leaf, which exudes drops of water. 〔植〕（尤指叶子表面的）排水器，水囊 Example sentencesExamples - Another way of disposing of excess salt may be to lose salt from the hydathodes, which release water at times of low transpirational water loss, such as at night.
- The hydathode is a specialized structure involved in secretion of water under high humidity.
- The three main veins fused at the leaf tip leading to an epithem hydathode.
- Indeed, activity, although low, was detected in cotyledon veins and tips and also in leaf veins, trichomes, and hydathodes.
- We analyzed the results as an estimate of the number of hydathodes, which is known to differ between juvenile and adult leaves.
Synonyms opening, orifice, aperture, hole, outlet, inlet, vent
OriginLate 19th century: from Greek hudōr, hudat- ‘water’ + hodos ‘way’. |