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protoplanetary disk

Noun CEFR B2

Definitions

A rotating disk of dense gas and dust surrounding a young newly formed star, and from which planets may be formed.

Equivalents

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CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

protoplanetary nebula protoplanetesimal Protoplasm Protoplasmic protoplasmodium protoplast

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