词族 · angiosperm
词形变化
英语词源
- angiosperm (n.)
- "plant with seeds contained in a protective vessel" (as distinguished from a gymnosperm), 1853, from Modern Latin Angiospermae, coined 1690 by German botanist Paul Hermann (1646-1695), from Greek angeion "vessel" (see angio-) + spermos, adjective from sperma "seed" (see sperm). So called because the seeds in this class of plants are enclosed.
权威例句
- 1. The life cycle of maize is that of a typical angiosperm.
- 玉米的生活史是被子植物中比较典型的.
- 2. This latter statement finds support in contemporary works on angiosperm embryology.
- 后者这一说法,在当代被子植物胚胎学研究中获得了支持.
- 3. Other angiosperm cultures based on totipotent cells could be adapted to similar ends.
- 其它用全能细胞的被子植物培养能够适合于类似的目的.
- 4. Most angiosperm ovules possess two integuments, while gymnosperms usually have only one.
- 大多数被子植物的胚珠有两层珠被, 而裸子植物通常只有一层.
- 5. What type of angiosperm do these leaf cross - sections represent?
- 这些叶片的 横切面 代表何类被子植物?