ulva
ulva
(ˈʌlvə)ul•va
(ˈʌl və)n., pl. -vas.
Noun | 1. | Ulva - type genus of the family Ulvaceae; green seaweed having a thallus two cells thick: sea lettuce |
单词 | ulva | |||||||||
释义 | ulvaulva(ˈʌlvə)ul•va(ˈʌl və)n., pl. -vas.
UlvaUlva(sea lettuce), a genus of algae of the family Ulvaceae of the order Uvales. The thallus is lamellate, entire, dissected, or branched; it is 30-150 cm long and consists of two tightly enclosed layers of cells. The approximately 20 species are most widely distributed in subtropical and temperate seas. Three species occur in the seas of the USSR. In Japan and some other countries sea lettuce is used as food. ULVA
Ulva
Synonyms for Ulva
|
|||||||||
随便看 |
|
英语词典包含2567994条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。