oscillating (part of speech: verb)
seesawing, wobbling, ticking, swaying, undulating, pulsating, alternating, teeter-tottering, pulsing, beating, throbbing, fluctuating, radiating, bobbing, trembling, vacillating, vibrating, oscillating, tottering, staggering, rocking
- 5 My dog I was ever well pleased to see Come wagging his tail to my fair one and me; And Phoebe was pleased too, and to my dog said, 'Come hither, poor fellow; ' and patted his head. - "Specimens with Memoirs of the Less-known British Poets, Vol. 3", George Gilfillan.
- In a very few minutes he stopped in a rocky depression where a horse had been tied, and waited for Swan, wagging his tail and showing his teeth in a panting smile. - "Sawtooth Ranch", B. M. Bower.
- Every morning before I dressed I heard him sounding my name through the house for the fun of it and I know for the fondness, and if I looked out of my door there he was in his long nightgown swaying up and down the corridor, and wagging his great white head like a boy that leaves his bed and comes out in the hope of frolic with some one. - "Mark Twain, A Biography, 1835-1910, Complete The Personal And Literary Life Of Samuel Langhorne Clemens", Albert Bigelow Paine Last Updated: February 20, 2009.