protobulge

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noun

A group of stars that accumulate into a galactic bulge.

Scrabble 15
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Meanings

nounprotobulge (plural protobulges)

plural protobulges

  1. astronomyA group of stars that accumulate into a galactic bulge.

    While we have produced box-shaped models (figure 6), the protobulges used were already somewhat box-shaped, and did not resemble elliptical galaxies.

    1984, Joshua Edward Barnes, On the Origin of Galactic Bulges, the Evolution of Groups, and the Distribution of Abell Clusters

Origin

From proto- + bulge.

Full word history & related roots →
Cite this entry
APA

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

MLA

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

Chicago

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

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