Relatively flat area found alongside the stream channel that is prone to flooding and receives alluvium deposits from these inundation events.

n. The flat area on either side of an active river channel that can be covered in water when the river is in flood. When the channel is breached, sediment-laden waters spread across the floodplain. Wh [..]

the natural path taken by a flood-swollen river. In the U.S., more than ten million homes are located in or near floodplains, and the Bush Administration has eased building restrictions in such locations. See Insurance.

the part of the valley floor occasionally flooded by the river. Over time sediment or alluvium builds the elevation of the plain.

Definition Level land subject to periodic flooding from a contiguous body of water. Floodplains are described by the frequency with which flooding is expected; a bi-annual floodplain is expected to be [..]

The flat or nearly flat land along a river or stream that is covered by water during a flood.

The flat or nearly flat land along a river or stream that is covered by water during a flood.

The flood plain is the flat land of the river valley close to the river banks. The floodplain is usually found in the lower course of a river. It is a fertile area of land, used for agriculture and gr [..]

According to 39 CFR 776.3 (Title 39 - Postal Service; Chapter I - United States Postal Service; Subchapter K - Environmental Regulations; Part 776 - Floodplain And Wetland Procedures; Subpart A - Gene [..]

(n) a low plain adjacent to a river that is formed chiefly of river sediment and is subject to flooding

A floodplain is nearly flat or flat land that is located next to a river or stream and that experiences occasional flooding. Gulf

Land adjoining a river that would flood if the river overflowed its banks.

area formed by fine sediments spreading out in the drainage basin on either side of the channel of a river as a result of the river's fluctuating water volume and velocity

The flat plain on either side of a stream that is flooded periodically.

A floodplain is a land area next to a river, stream, lake, estuary or other water body that is subject to flooding. These areas, if left undisturbed, act to store excess floodwater.

Floodplain is the total area subject to inundation by the 100-year flood.

Mostly level land along rivers and streams that may be submerged by floodwater. A 100-year floodplain is an area which can be expected to flood once in every 100 years.

The area of shorelands extending inland from the normal yearly maximum stormwater level to the highest expected stormwater level in a given period of time (e.g., 5, 50, 100 years).

The flat or nearly flat land along a river or stream or in a tidal area that is covered by water during a flood.

The flat or nearly flat land along a river or stream or in a tidal area that is covered by water during a flood.

Land beyond a stream channel that forms the perimeter for the maximum probability flood.

The flat or nearly flat land along a river or stream or in a tidal area that is covered by water during a flood.

That portion of a river valley that is covered with water when the river overflows its banks.

Any land area susceptible to being inundated by floodwaters from any source.

land next to a stream or river that is flooded during high-water flow.

the area of relatively flat land which is inundated by flood waters from the upper catchment up to the probable maximum flood event.

land next to a river that becomes covered by water when the river overflows its banks .

a low, flat area on either side of a river that can accommodate large amounts of water during a flood, lessening flood damage further downstream.

an area along a river that forms from sediments deposited when the river overflows its banks

A smooth plain covered by deposits of sand, gravel and rocks from floods. Sharp-edged rocks have only been carried by floodwaters a short distance while smooth, rounded rocks have traveled long distan [..]

A floodplain is the area adjacent to a river or stream which floods when the water level rises and overflows the river's banks. They provide an important ecosystem service

The flat land adjacient to a river, formed by deposition of fluvial materials.

The area along a stream or drainage course, lake, or pond, which, after total development of the watershed, would experience inundation by stormwater runoff equivalent to that which would occur on the [..]

The area of low-lying ground adjacent to a river, formed mainly of river sediments and prone to flooding.

The flat surfaces along the courses of rivers, streams, and other bodies of water that are subject to overflow and flooding.

An area of low-lying land next to a body of water (river, creek, etc.) that is prone to flooding. The Federal Emergency Management Agency (FEMA) creates maps showing which areas of land are considered to be in a floodplain. More info here