noun
Astronomical term for an eclipse (solar or lunar). Used in scientific and general contexts.
明日は部分日食が見られる。エクリプスを観察するには専用のメガネが必要だ。
A partial solar eclipse can be seen tomorrow. You need special glasses to observe the eclipse.
日食 is the native Japanese term for solar eclipse, while エクリプス is a loanword that can refer to any eclipse or be used in a more technical or stylish context.
月食 specifically means lunar eclipse, whereas エクリプス is a broader term covering both solar and lunar eclipses.
Borrowed from English 'eclipse', ultimately from Ancient Greek ἔκλειψις (ékleipsis, 'abandonment, disappearance').