massive and compact halo object
English
[edit]Etymology
[edit]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 "and"
Noun
[edit]massive and compact halo object (plural massive and compact halo objects)
- Alternative form of massive compact halo object