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subgiant

noun
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sub·​giant | \ "+ \

Definition of subgiant

: a star of such color and luminosity that it falls above the main sequence of the spectrum-luminosity diagram yet is not in the region of ordinary giant stars

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History and Etymology for subgiant

sub- + giant

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“Subgiant.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/subgiant. Accessed 26 Jan. 2021.

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