英语释义
1. the typically free-swimming, bell-shaped, usually sexually-reproducing solitary or colonial form of a cnidarian in which the whorls of tentacles lined with nematocysts arise and hang down from the margin of the nearly transparent, gelatinous bell medusa especially a large medusa characteristic of the siphonophores and scyphozoans (such as the sea nettle or box jellyfish)
2. siphonophore
3. ctenophore
4. a person lacking backbone or firmness
5. a sea animal that has a very soft body and that can sting
6. a free-swimming sea animal related to the corals that has a nearly transparent jellylike body shaped like a saucer and tentacles with stinging cells
7. a free-swimming marine coelenterate that is the sexually reproducing form of a hydrozoan or scyphozoan and has a nearly transparent saucer-shaped body and extensible marginal tentacles studded with stinging cells