Yahoo奇摩字典 網頁搜尋

搜尋結果

1. Oxford Dictionary

   protostar

   • IPA[ˈprəʊtə(ʊ)stɑː]

   英式

   • n.
     a contracting mass of gas which represents an early stage in the formation of a star, before nucleosynthesis has begun.

   • noun: protostar, plural noun: protostars