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terminator

mastery

UK /ˈtɜː.mɪ.neɪ.tə/ US /ˈtɝ.mɪˌneɪ.tɚ/noun

card 1 of 5 · fill in the blank

Harriot, looking at the moon, saw the _____ terminator, the highlights and shadows, the mountain ranges and valleys that Galileo had described.