noun
partial solar eclipse
Astronomical term for an eclipse where the moon covers only part of the sun.
今日は部分日食が観測できる。
A partial solar eclipse can be observed today.
部分日食のときは専用の日食グラスを使いましょう。
Use special eclipse glasses during a partial solar eclipse.
Compound of 部分 (partial) and 日食 (solar eclipse). The term is straightforward and modern.