downgoing adjective 1noun 1forms 1 adjective1 •Tending downwardFirst, explosions in the water are efficient generators of seismic waves, because hydroacoustic energy efficiently generates downgoing seismic waves below the water. — 1997 noun1 •(literary, rare) A descentArt thou not weary, Time, of thy long tramp, / Thy long downgoings from the thrones of bliss ? — 1854 formsdowngoings
