Seafloor

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    Synonym of seabed.

    "The seafloor is often covered with sediment."

Synonyms

All synonyms
seabed

Example

More examples

"When a coral egg and sperm join together as an embryo, they develop into a coral larva, called a planula. Planulae float in the ocean, some for days and some for weeks, before dropping to the ocean floor. Then, depending on seafloor conditions, the planulae may attach to the substrate and grow into a new coral colony at the slow rate of about .4 inches a year."

Etymology

From sea + floor.

Related phrases

seafloor spreading

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.