waterfall /ˈwɔːtəfɔːl/noun 9verb 3forms 3 noun9 •A flow of water over the edge of a cliff.Hello, my love, I heard a kiss from you / Red magic satin playing near too / All through the morning rain I gaze, the sun doesn't shine / Rainbows and waterfalls run through my mind — 1977 •(figurative) A waterfall-like outpouring of liquid, smoke, etc.A waterfall of mist came from the open freezer. •Short for waterfall modelA very long project […] had taken a whole group of people through a painful waterfall development process. •(US, slang) The action of drinking from a vessel without touching it with the lips, considered more sanitary for a shared vessel.Hey man, can I take a waterfall from your bottle? •A chart depicting the timing and duration of network requests. •A kind of handstand with chin tucked and back arched. •(informal, old-fashioned) A beard.I found home a dreary place after my long absence; for half the children I had known were now wearing whiskers or waterfalls, […] — 1870 •(informal, old-fashioned) A chignon (hairstyle). •(informal, old-fashioned) A necktie. verb3 •To fall like a waterfall.Rain ran off the bill of his fielder's cap and waterfalled in front of his face. — 1994 •To drink (something) from a container by pouring it from a height so as not to touch one's lips to the rim. •Synonym of recycle. formswaterfalled · waterfalling · waterfalls