lakebed

or lake bed

[ leyk-bed ]
/ ˈleɪkˌbɛd /

noun

the bottom or floor of a lake.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for lakebed

  • While he was still lying dazed, a vast explosion occurred in the newly opened depths beneath the lakebed.

    A Voyage to Arcturus|David Lindsay
  • In dry years there is little water in the lake, and most of the lakebed is dry; in very wet years the entire lakebed is flooded.