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Sonar Meaning: Definition, Examples, and Translations

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sonar

[ˈsoʊ.nɑːr ]

Definition

Context #1 | Noun

marine exploration

Sonar is a technique that uses sound propagation to navigate, communicate, or detect objects on or under the surface of the water. It is widely used in marine exploration, fishing, and naval applications to identify the location of underwater objects and map the sea floor.

Synonyms

echo sounding, sound navigation and ranging.

Examples of usage

  • The fishermen used sonar to locate schools of fish.
  • Naval ships depend on sonar to detect submarines.
  • The research vessel deployed sonar to map the ocean floor.
  • They installed a sonar system to enhance underwater communication.

Translations

To see the translation, please select a language from the options available.

Interesting Facts

Historical Origins

  • The term 'sonar' is a blend of 'sound' and 'navigation or ranging', first used during World War I.
  • Originally, sonar technology was developed to detect submarines, significantly impacting naval warfare strategies.

Science

  • Sonar works by emitting sound waves that travel through water, bouncing back when they hit an object, revealing its distance and shape.
  • There are two main types of sonar: active (sending out sound waves) and passive (listening for sounds from other objects).

Biology

  • Certain animals, like dolphins and bats, use a natural form of sonar called echolocation to navigate and hunt for food.
  • Echolocation involves producing sounds that echo off objects, allowing animals to perceive their surroundings without sight.

Technology

  • Sonar technology has advanced to include 3D imaging, greatly enhancing underwater exploration and mapping.
  • Modern fishing boats often employ sonar to locate schools of fish, making fishing activities more efficient.

Pop Culture

  • In movies, sonar technology is often dramatized in submarine scenes, heightening tension and suspense through sound-dependent navigation.
  • The use of sonar is sometimes depicted in video games, where players must rely on sound waves to navigate underwater environments.

Origin of 'sonar'

The term 'sonar' is derived from the acronym 'Sound Navigation and Ranging', which encapsulates the two primary functions it serves: navigation and ranging. It emerged during World War I as efforts intensified to detect submarines and mines submerged in water. The technology was significantly developed during World War II, leading to more sophisticated systems that could determine not just the distance to an object, but also its size and shape. The advancements in electronics and signal processing during the latter half of the 20th century further propelled its applications, not only in militaristic endeavors but also in commercial and research fields. Today, sonar is utilized in various domains, including oceanography, marine biology, and civil engineering, reflecting its versatility in exploring and understanding aquatic environments.

Word Frequency Rank

With rank #19,928, this word belongs to specialized vocabulary. While not common in everyday speech, it enriches your ability to express complex ideas.