ultraluminous
adjEtymology From ultra- + luminous.
1
Very luminous
2
Astronomy, Natural sciences Very luminous, though less luminous than that classified as hyperluminous.
3
Having a luminosity near below, at, or, exceeding Eddington luminosity, exceeding the Eddington limit
- Derived terms
- ULIRG, ULX, ULXB
- Related terms
- hyperluminous, luminous, subluminous, superluminous
- Coordinate terms
- Eddington limit, Eddington luminosity, super-Eddington