• synonyms


[uhl-truh-suh-nog-ruh-fee, -soh-]
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  1. a diagnostic imaging technique utilizing reflected high-frequency sound waves to delineate, measure, or examine internal body structures or organs.

Origin of ultrasonography

First recorded in 1950–55; ultra- + sono- + -graphy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for ultrasonography


  1. the technique of using ultrasound to produce pictures of structures within the body, as for example of a fetus
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for ultrasonography


1960, from ultra- + sonography (see sonogram).

Online Etymology Dictionary, © 2010 Douglas Harper

ultrasonography in Medicine


  1. Diagnostic imaging in which ultrasound is used to visualize an internal body structure or a developing fetus.echography sonography
Related formsul′tra•so•nogra•pher n.ul′tra•son′o•graphic (-sŏn′ə-grăfĭk, -sō′nə-) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ultrasonography in Science


  1. Diagnostic imaging in which ultrasound is used to image an internal body structure or a developing fetus. See Note at ultrasound.
  2. An imaging technology that uses high-frequency sound waves to visualize underwater objects, topography, boundaries between layers, and currents. It is often used to locate underwater vehicles on the ocean floor. The sound waves are broadcast, and the timing and frequency shift of their echoes are analyzed in much the same manner as in sonar to produce an image or map of the phenomena or objects under investigation. Also called ultrasound
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.