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subtidal

subtidal

7.9
The part of the sea floor that is always underwater below the low tide line
  • noun
  • /ˌsʌbˈtaɪdəl/
  • Specialized
translation icon : zona submareal
  • Marine biologists collected samples from the subtidal to study underwater plant life.

Examples

  • Many fish species make their homes in the subtidal because it is always covered by water.

  • The subtidal supports a rich diversity of seaweeds and invertebrates.

  • The subtidal zone is rich in marine life.

  • Many species thrive in the subtidal environment.

  • The subtidal zone is rich in marine life, including colorful corals and diverse fish species.

  • During our dive, we explored the subtidal area, which was teeming with underwater plants and animals.

  • Researchers are studying the health of the subtidal ecosystem to understand its impact on coastal fisheries.

Synonyms

ocean floor
vssubtidal
27 2.9

The bottom of the sea or ocean with plains, ridges, and trenches

is narrower, meaning zones permanently underwater below low tide
seabed
vssubtidal
14 2.4

The ground at the bottom of the sea where sand and rocks lie

is the part that stays underwater even at the lowest tides
sea floor
vssubtidal
13 2.8

The ground under the sea or ocean

is specifically the area always underwater below the low tide mark
seafloor
vssubtidal
10 2.7

The bottom of the sea or ocean

is specifically the area always underwater below the low tide mark
ocean bottom
vssubtidal
3 3.7

The lowest part of the sea where sand and mud rest

is about areas that are always underwater rather than only very deep locations
sea bottom
vssubtidal
2 2.5

The floor of the sea where sand, rocks, and animals live

is the section that never becomes exposed at low tide

Antonyms

1.8

Not covered by clothes and showing skin

How Deep

deep sea
6 3.6
subtidal
  • Specialized
7.9
continental shelf
  • Specialized
4 5.5
intertidal
  • Specialized
1 6.9

Surface Forms

subtidal singular
subtidals plural

Morphology

subtidal = tidal (transparent) = sub + tidal

The meaning is clearly derived from 'sub-' meaning 'below' and 'tidal', indicating a location below the tidal zone.

Etymology

The word subtidal comes from sub- 'under' and tide 'the rise and fall of the sea'. As a noun, subtidal names the part of the sea floor below the low-tide mark that is always covered by water.