massive astronomical compact halo object

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English

Etymology

A backformation from MACHO, where the "A" originally was the second letter in the word "massive", in "MAssive Compact Halo Object", to provide a separate word to fill in the "A" in the acronym, using "astronomical"

Noun

massive astronomical compact halo object (plural massive astronomical compact halo objects)

  1. Alternative form of massive compact halo object
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