MEANING
A disk of gas and dust around a young star from which planets may form.
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Words that belong together
- a dusty protoplanetary disk
- gaps in a protoplanetary disk
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The image showed gaps in the dusty protoplanetary disk.
The crew approached the young star from above the protoplanetary disk’s plane.
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Word forms
- Base
- protoplanetary disk
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Usage notes
Primary category: sci-fi. Forms: Singular protoplanetary disk; plural protoplanetary disks. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.
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