oscillating
振動している
解説 Definition
oscillating は oscillate(振動する、揺れ動く)の現在分詞です。物体が一定の範囲で前後・上下に動いている状態や、数値や意見が二つの状態の間で揺れている場合に使われます。
Moving repeatedly back and forth between positions, values, or states. As the present participle of oscillate, it can describe physical motion such as a fan turning from side to side or repeated variation in a signal, measurement, or opinion.
覚え方のコツ Memory Tip
原形 oscillate「振動する」の語末 e を落として -ing を付けた現在分詞。扇風機が left to right に首を振る場面を核に、針・信号・数値・意見が二つの位置や状態の間を反復して動くイメージへ広げる。単なる shaking より、一定範囲を往復する規則的な動きを示しやすく、-ing は /ɪŋ/ と発音する。
Connect oscillating with repeated movement between two limits. Picture an oscillating fan slowly sweeping from left to right and back again; then extend that image to a needle, signal, value, or opinion moving between states. The word often suggests a more regular back-and-forth pattern than the general word shaking. It is the present participle of oscillate. To form it, drop the final silent e of oscillate and add -ing: oscillate becomes oscillating. The ending is pronounced /ɪŋ/, and useful combinations include oscillating fan, oscillating signal, and oscillating motion.
例文
The fan was oscillating slowly from left to right.
扇風機はゆっくり左右に首を振っていました。
A small needle is oscillating on the screen.
小さな針が画面上で振動しています。
The signal kept oscillating during the experiment.
実験中、信号は振動し続けました。
oscillating の類義語・関連語
oscillating の語源・成り立ち Etymology
ラテン語 oscillare(揺れ動く)の現在分詞形。語源はラテン語 oscillum(小さな顔・仮面)で、古代ローマで木に吊るした仮面が風で揺れた習慣に由来する。関連語:oscillation(振動)、oscillator(発振器)。揺れる仮面から「振動する」という意味が生まれた興味深い語。
Oscillating is formed from oscillate by dropping the final e and adding -ing. Oscillate comes from Latin oscillare, “to swing,” which is associated with oscillum, a small mask or face. Such objects were hung up and could swing in the wind, providing the historical image behind the verb. In modern usage, the word applies both to repeated physical motion and to variation between values or states.
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