Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A wall built along a shore or bank to protect an area from floods.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun A man-made vertical barrier designed to temporarily contain the waters of a river or other waterway during a flood

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

flood +‎ wall

Examples

  • Punch these coordinates (30.043863, -89.909711) into a Google mapping product (haven't checked to see it in Live Earth or NAIP satellites) to see an intense agricultural project visible from space, just over the floodwall from the hub of the Vietnamese community.

    After the Deluge, The Farm

  • The Army Corps of Engineers began building a secondary flood wall to protect low-lying areas of Hamburg, Iowa, because it expects the northernmost breach of the floodwall, which is 5 miles southwest of town, to fully give way at some point.

    KansasCity.com: Front Page

  • The Army Corps of Engineers began building a secondary flood wall to protect low-lying areas of Hamburg, Iowa, because it expects the northernmost breach of the floodwall, which is 5 miles southwest of town, to fully give way at some point.

    KansasCity.com: Front Page

  • The Army Corps of Engineers began building a secondary flood wall to protect low-lying areas of Hamburg, Iowa, because it expects the northernmost breach of the floodwall, which is 5 miles southwest of town, to fully give way at some point.

    KansasCity.com: Front Page

  • The Army Corps of Engineers began building a secondary flood wall to protect low-lying areas of Hamburg, Iowa, because it expects the northernmost breach of the floodwall, which is 5 miles southwest of town, to fully give way at some point.

    KansasCity.com: Front Page

  • California will, before the night is over tomorrow, be labeled the "floodwall" that turned back the "Republican wave" this year.

    Chris Weigant: My Final Midterm Election Picks

  • California will, before the night is over tomorrow, be labeled the "floodwall" that turned back the "Republican wave" this year.

    Chris Weigant: My Final Midterm Election Picks

  • California will, before the night is over tomorrow, be labeled the "floodwall" that turned back the "Republican wave" this year.

    Chris Weigant: My Final Midterm Election Picks

  • California will, before the night is over tomorrow, be labeled the "floodwall" that turned back the "Republican wave" this year.

    Chris Weigant: My Final Midterm Election Picks

  • California will, before the night is over tomorrow, be labeled the "floodwall" that turned back the "Republican wave" this year.

    Chris Weigant: My Final Midterm Election Picks

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