Longman Dictionary of Contemporary English
Wiktionary
n. (alternative spelling of floodplain English)
WordNet
n. a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding [syn: floodplain]
Usage examples of "flood plain".
It was a little early for him, since he was born during the peak of the flood, but everyone in the clan agreed with Twerk that it was better for a manling so well-favored to be early than late, and if he wasn't already up and out of the flood plain before the rains came, then he'd have to wait months before he could safely go.
I sat just beneath the north-east corner of the Mayan Temple of the Inscriptions and gazed north over the darkening jungle where the land dropped away towards the flood plain of the Usumacinta.
The two massed lines of horse clashed on the narrow strip of flood plain, but already twilight dimmed the scene as sword and armor and shield clanged like the echo of some great smithy.
Down the graveled flood plain wildly galloped a company of horsemen, steel blazing in the morning sunlight.
He would sit on the ledge that ran before the cave and stare over the froth of treetop foliage that clothed the plunging hillside, but afforded a glimpse of the pond that lay in the flood plain of the river.
Beyond that ridge, the land looked different: smoothed over, lacking craters, kind of like mud, like a flood plain.
Strafed by arrows as they milled across the flood plain, their advance to the forest was crushed back by Dribeck's fresh troops, and through their rear slashed the Selonari mounted horse.
Thus, the cave is located inside a mountain above the flood plain, overlooking the western bank of the Nile.