DictionaryeclipseAstronomical obscuring
noun / verb

eclipse

ih-KLIPS/ɪˈklɪps/

The obscuring of one celestial body by another.

The Moon covers most of the Sun during this partial eclipse.

A close view of a partial solar eclipse: the Moon's dark circular silhouette overlaps most of the Sun, leaving a bright golden crescent visible.
Etymology

The Greek combination meant forsaking a usual place or failing to appear. An eclipse describes that apparent failure of a celestial body to appear when another body obscures it.

In context

CrashCourse0:51
An eclipse is a generic term in astronomy for when one object passes into the shadow of another object, darkening or blocking it.
Eclipses: Crash Course Astronomy #5

More examples

  • Earth's shadow darkens the Moon during a lunar eclipse.
  • The Moon briefly eclipses the Sun.
  • Solar eclipses are visible only from certain parts of Earth.

Forms

eclipse · eclipses · eclipsed · eclipsing

Similar words

occultation
Usually describes a nearby body hiding a more distant object.
obscuration
A broader term for blocked light, including clouds or dust.