massive astrophysical compact halo object

A form of massive compact halo object — Any kind of astronomical body comprising normal baryonic matter that in sufficient numbers might explain the apparent presence of dark matter in galaxy halos.

Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounmassive astrophysical compact halo object (plural massive astrophysical compact halo objects)

plural massive astrophysical compact halo objects

  1. alternativeastronomyAlternative form of massive compact halo object.

Origin

A back-formation from MACHO, which is used as an acronym for massive compact halo object. Words used to fill in the apparently missing "A" word include astrophysical and astronomical.

Full word history & related roots →
Cite this entry
APA

massive astrophysical compact halo object. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/massive%20astrophysical%20compact%20halo%20object

MLA

“massive astrophysical compact halo object.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/massive%20astrophysical%20compact%20halo%20object. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “massive astrophysical compact halo object,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/massive%20astrophysical%20compact%20halo%20object.

Source: massive astrophysical compact halo object on Wiktionary, CC BY-SA 4.0.