Definition of protoplanetary in English:

protoplanetary

adjective ˌprəʊtə(ʊ)ˈplanɪt(ə)ri

Astronomy

1950s. From proto- + planetary, partly after Russian protoplanetnyj, and partly after protoplanet.

adjectiveˌprəʊtə(ʊ)ˈplanɪt(ə)ri

Astronomy

1950s. From proto- + planetary, partly after Russian protoplanetnyj, and partly after protoplanet.

单词	protoplanetary
释义	Definition of protoplanetary in English: protoplanetary adjective ˌprəʊtə(ʊ)ˈplanɪt(ə)ri Astronomy Of, relating to, or of the nature of a protoplanet. Origin 1950s. From proto- + planetary, partly after Russian protoplanetnyj, and partly after protoplanet. Definition of protoplanetary in US English: protoplanetary adjectiveˌprəʊtə(ʊ)ˈplanɪt(ə)ri Astronomy Of, relating to, or of the nature of a protoplanet. Origin 1950s. From proto- + planetary, partly after Russian protoplanetnyj, and partly after protoplanet.
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