English Dictionary

occulter

noun

Any object, natural or man-made, that blocks the light of an object from an observer, typically used in reference to astronomical events.

The occulter blocked the light from the sun.

意味（1）

Any object, natural or man-made, that blocks the light of an object from an observer, typically used in reference to astronomical events.

The moon is the occulter of the sun during a solar eclipse.