- sonic depth finder
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a sonar instrument that uses echolocation to measure depths under water. Cf. Fathometer.[1925-30]
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Universalium. 2010.
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Universalium. 2010.
sonic depth finder — n. FATHOMETER … English World dictionary
sonic depth finder — noun depth finder for determining depth of water or a submerged object by means of ultrasound waves • Syn: ↑fathometer • Hypernyms: ↑depth finder * * * noun : an instrument for determining the depth of a body of water or of an object below the… … Useful english dictionary
depth finder — ▪ measurement device also called echo sounder device used on ships to determine the depth of water by measuring the time it takes a sound (sonic pulse) produced just below the water surface to return, or echo, from the bottom of the body… … Universalium
depth finder — noun navigational instrument used to measure the depth of a body of water (as by ultrasound or radar) • Hypernyms: ↑navigational instrument • Hyponyms: ↑sonic depth finder, ↑fathometer … Useful english dictionary
depth sounder — /ˈdɛpθ saʊndə/ (say depth sownduh) noun a device for estimating the depth of water beneath a vessel by emitting sonic waves and measuring the time it takes for their echoes to return from the sea floor. Also, depth finder …
fish-finder — ˈ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun : a sonic depth finder used to determine the position of schools of fish in the sea … Useful english dictionary
Fathometer — /fa dhom i teuhr/, Trademark. a brand of sonic depth finder. * * * trade name for a type of sonic depth finder (q.v.). * * * … Universalium
Fathom — unit of length m= 1.8288000 accuracy=5 A fathom is a unit of length in the Imperial system (and the derived U.S. customary units), used especially for measuring the depth of water. There are 2 yards (6 feet) in a fathom. Encyclopædia Britannica… … Wikipedia
USS Viking (ARS-1) — For other ships of the same name, see USS Flamingo. For other ships of the same name, see USS Guide and USC GS Guide. For other ships of the same name, see USS Viking. USC GS Pioneer and USC GS Guide at Dutch Harbor, Territory of Alaska, in 1940 … Wikipedia
fathometer — n. instrument for measuring underwater depth using sound, sonic depth finder … English contemporary dictionary