protostar
n. [天]原恒星
发音
UK
/ˈpɹəʊtə(ʊ)stɑː/
US
/ˈpɹoʊtəˌtaɪp/
US
/ˈpɹoʊtoʊˌtaɪp/
词形变化
protostars
复数
protostars
释义与例句
n.
-
1.
A collection of gas and dust in space with high temperature that usually grows to the point of beginning nuclear fusion and becoming a star.
原恒星
天文
词源
From proto- + star. Compare later protostellar.
来源：wiktionary