reflection nebula
noun Astronomy.
a cloud of interstellar gas and dust that reflects the light of neighboring stars.
Origin of reflection nebula
First recorded in 1935–40
Words nearby reflection nebula
reflected plan,
reflecting telescope,
reflection,
reflection coefficient,
reflection density,
reflection nebula,
reflection plane,
reflective,
reflectivity,
reflectometer,
reflector
Scientific definitions for reflection nebula
reflection nebula
A nebula that reflects the light of a nearby star or stars toward Earth rather than producing its own. See more at nebula.