pseudobulge

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noun

A morphological feature of some spiral galaxies that appears similar to a conventional galaxy bulge, but with internal dynamics that are dominated by rotation rather than random motions.

Scrabble 17
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Meanings

nounpseudobulge (plural pseudobulges)

plural pseudobulges

  1. astronomyA morphological feature of some spiral galaxies that appears similar to a conventional galaxy bulge, but with internal dynamics that are dominated by rotation rather than random motions.

Origin

From pseudo- + bulge.

Full word history & related roots →
Cite this entry
APA

pseudobulge. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/pseudobulge

MLA

“pseudobulge.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/pseudobulge. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “pseudobulge,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/pseudobulge.

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