partial lunar eclipse
Astronomical term for a lunar eclipse where only part of the Moon enters Earth's umbra.
I heard that a partial lunar eclipse can be seen tonight.
皆既月食 is a total lunar eclipse, while 部分月食 is a partial one.
月食 is the general term for a lunar eclipse, covering both total and partial.
Compound of 部分 (partial) and 月食 (lunar eclipse).