and-fro motion
61swing — [c]/swɪŋ / (say swing) verb (swung or, Archaic, swang, swung, swinging) –verb (t) 1. to cause to move to and fro, sway, or oscillate, as something suspended from above: ladies swinging their parasols. 2. to cause to move in alternate directions,… …
62Amplitude of vibration — Vibration Vi*bra tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster] As a harper lays… …
63Phase of vibration — Vibration Vi*bra tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster] As a harper lays… …
64Vibration — Vi*bra tion, n. [L. vibratio: cf. F. vibration.] 1. The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string. [1913 Webster] As a harper lays his open… …
65wave — verb 1》 move one s hand to and fro in greeting or as a signal. ↘move (one s hand or arm, or something held in one s hand) to and fro. ↘(wave someone/thing down) wave one s hand to stop a driver or vehicle. ↘(wave something aside)… …
66Theory of impetus — The theory of impetus was an antiquated auxiliary or secondary theory of Aristotelian dynamics, put forth initially to explain projectile motion against gravity. It was first introduced by Hipparchus in antiquity, and subsequently further… …
67Avicennism — (PerB|فلسفه سینایی) is a school of early Islamic philosophy which began during the middle of the Islamic Golden Age. The school was founded by Avicenna (Ibn Sina), an 11th century Persian philosopher who attempted to redefine the course of… …
68electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
69wave — I (New American Roget s College Thesaurus) v. wag, shake, sway, flutter, stream (in the wind); signal, motion, gesture, indication; roll, undulate; ripple, swell, billow, flood, surge; flaunt, flourish. n. sea, tide, water, ripple, billow, etc.,… …
70swing — vb 1 Swing, wave, flourish, brandish, shake, thrash are comparable when they mean to wield or to handle something so that it moves alternately backward and forward or upward and downward or around and around. Swing often implies regular… …
