evection
/ɪˈvɛkʃən/Definitions
1. noun
a rare or irregular eclipse of the Moon, occurring when the Moon passes through the Earth’s shadow during a solar eclipse, and the Earth passes through the Moon’s shadow at the same time.
“The astronomer studied the evectives that occurred during the rare solar eclipse.”
2. noun
a rare or unusual phenomenon or event, especially one that is difficult to explain or predict.
“The evective weather pattern that hit the city caught everyone off guard.”