1. obscuration - Noun
2. obscuration - Verb
The act or operation of obscuring; the state of being obscured; as, the obscuration of the moon in an eclipse.
Source: Webster's dictionaryForeground dust obscuration As seen from Earth, the group lies near the plane of the Milky Way (a region sometimes called the Zone of Avoidance ). Source: Internet
This complicates observational studies of the group, as uncertainties in the dust obscuration also affect measurements of the galaxies' luminosities and distances as well as other related quantities. Source: Internet