protobulge

English

Etymology

From proto- +‎ bulge.

Noun

protobulge (plural protobulges)

1. (astronomy) A group of stars that accumulate into a galactic bulge.
   • 1984, Joshua Edward Barnes, On the Origin of Galactic Bulges, the Evolution of Groups, and the Distribution of Abell Clusters:

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