| 单词 | protogalaxy |
| 释义 | protogalaxy in British English (ˌprəʊtəʊˈɡæləksɪ) nounWord forms: plural -axies a cloud of gas in the early stages of its evolution into a galaxy protogalaxy in American English (ˌproʊtoʊˈgæləksi) nounWord forms: plural ˌprotoˈgalaxies in some cosmological theories, a huge cloud of dust and hydrogen gas out of which millions of protostars are formed Derived forms protogalactic (ˌprotogaˈlactic) (ˌproʊtoʊgəˈlæktɪk) adjective |
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