Doppler effect
present participle of premonish
The apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves.
A rare genetic disorder that affects the cerebellum.
Edwardsiella andrillae, a sea anemone of the family Edwardsiidae, found in the ice of the Ross Ice Shelf in Antarctica.
救急車が交差点を通り過ぎるとき、発信源と観測者の相対運動によって生じる周波数の見かけの変化（ドップラー効果）により、サイレンの音程が下がって聞こえた。
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