hydrothermal vent

noun Oceanography, Geology.

an opening on the floor of the sea from which hot, mineral-rich solutions issue.Compare vent1(def 2).

Nearby words

  1. hydrotaxis,
  2. hydrotheca,
  3. hydrotherapeutics,
  4. hydrotherapy,
  5. hydrothermal,
  6. hydrothionemia,
  7. hydrothionuria,
  8. hydrothorax,
  9. hydrotropic,
  10. hydrotropism

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for hydrothermal vent

hydrothermal vent

A fissure on the floor of a sea out of which flows water that has been heated by underlying magma. The water can be as hot as 400°C (752°F) and usually contains dissolved minerals that precipitate out of it upon contact with the colder seawater, building a stack of minerals, or chimney. Hydrothermal vents form an ecosystem for microbes and animals, such as tubeworms, giant clams, and blind shrimp, that can withstand the hostile environment.♦ The hottest hydrothermal vents are called black smokers because they spew iron and sulfide which combine to form iron monosulfide, a black compound.
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