AGB

A1G2B3

A form of asymptotic giant branch — The region of the Hertzsprung-Russell diagram populated by evolving low to medium-mass stars.

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Meanings

nounAGB (countable and uncountable, plural AGBs)

plural AGBs

  1. abbreviationcountableinitialismuncountableastronomyInitialism of asymptotic giant branch; A classification of stars on the Hertzsprung-Russell diagram.
  2. abbreviationcountableellipsisuncountableastronomyEllipsis of AGB star (“a star in this classification”).

Synonyms & antonyms

Also see
asymptotic giant branch

Rhymes & wordplay

Anagrams

baggab
Cite this entry
APA

AGB. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/AGB

MLA

“AGB.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/AGB. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “AGB,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/AGB.

Source: AGB on Wiktionary, CC BY-SA 4.0.