Definitions

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

  • noun A floating mass of vegetation that obstructs navigation in tropical rivers, found chiefly in upper portions of the Nile River.

from The Century Dictionary.

  • noun An impenetrable mass of floating water-plants interlaced with trunks of trees and decayed vegetable matter, forming floating islands in the White Nile.
  • noun See sadd.

from the GNU version of the Collaborative International Dictionary of English.

  • noun Central Africa A tangled mass of floating vegetal matter obstructing navigation.

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

  • noun A floating mass of plant matter, such as reeds, which obstructs boat passage on the Nile

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[Arabic, obstruction, sudd, from sadda, to obstruct; see šdd in Semitic roots.]

Examples

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