late 14c., from Old French perturber "disturb, confuse" (14c.) and directly from Latin perturbare "to confuse, disorder, disturb," especially of states of the mind, from per- "through" (see per) + turbare "disturb, confuse," from turba "turmoil, crowd" (see turbid). Related: Perturbed; perturbing.
例文
1. Her sudden appearance did not seem to perturb him in the least.
彼女の突然の出現は少しも彼を不安にさせなかったようだ。
2.Venus,Earth,and other planets also perturb Mercury 's motion.
金星は、地球や他の惑星も水星の動きを摂動させている。
3.Stellar passings can perturb the orbits of comets.