Definition of macrolensing in English:

macrolensing

Pronunciation /ˌmakrəʊˈlɛnziŋ/

noun

Astronomy
  • The refraction or focusing of electromagnetic radiation by the gravitational field of a diffuse astronomical object such as a galaxy or cluster, as opposed to that caused by a single discrete object such as a star or planet.

Origin

1980s. From macro- + lensing.