ペンデュラムalso: ペンジュラムFreq.FrequencyTop 100,000Meanings1nounpendulumLoanword from English, used in physics and mechanics. The native Japanese equivalent is 振り子 (ふりこ).See also: 振り子ペンデュラムの周しゅう期きは、ひもの長ながさで決きまる。The period of a pendulum is determined by the length of the string.