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Wordage.info / sonar

Exact Match:

sonar: a measuring instrument that sends out an acoustic pulse in water and measures distances in terms of the time for the echo of the pulse to return; "sonar is an acronym for sound navigation ranging"; "asdic is an acronym for antisubmarine detection investigation committee"

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Related Words:

bathymetry collapse: measuring the depths of the oceans

oceanography collapse: the branch of science dealing with physical and biological aspects of the oceans

Braille collapse: a point system of writing in which patterns of raised dots represent letters and numerals; French educator who lost his sight at the age of three and who invented a system of writing and printing for sightless people (1809-1852); transcribe in Braille

chronometer collapse: an accurate clock (especially used in navigation)

sounding collapse: the act of measuring depth of water (usually with a sounding line); a measure of the depth of water taken with a sounding line; making or having a sound as specified; used as a combining form; "harsh-sounding"; having volume or depth; "sounding brass and a tinkling cymbal"; "the sounding cataract haunted me like a passion"- Wordsworth

dead reckoning collapse: navigation without the aid of celestial observations

celestial navigation collapse: navigating according to the positions of the stars

sextant collapse: a measuring instrument for measuring the angular distance between celestial objects; resembles an octant; a unit of angular distance equal to 60 degrees

loran collapse

shoran collapse

pilotage collapse

radar collapse: measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects

cane collapse: a stiff switch used to hit students as punishment; a stick that people can lean on to help them walk; a strong slender often flexible stem as of bamboos, reeds, rattans, or sugar cane; beat with a cane

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