In ultrasonography, containing few or no echoes; a misnomer for transonic or anechoic. See anechoic. [L. sonus, sound + L. luceo, to shine]

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sono·lu·cent .sän-ō-'lü-sənt adj allowing passage of ultrasonic waves without production of echoes that are due to reflection of some of the waves <a \sonolucent mass>

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sono·lu·cent (son″o-looґsənt) in ultrasonography, permitting the passage of ultrasound waves without reflecting them back to their source (without giving off echoes).

Medical dictionary. 2011.

Look at other dictionaries:

  • Sign — Any abnormality that indicates a disease process, such as a change in appearance, sensation, or function, that is observed by a physician when evaluating a patient. * * * 1. Any abnormality indicative of disease, discoverable on examination of… …   Medical dictionary

  • anechoic — The property of being echo free or appearing without echoes on a sonographic image; a cyst filled with clear fluid appears a.. See transonic. SYN: echo free. [G. an priv. + echo + ic] * * * an·echo·ic (an ə koґik) [an 1 + echo + ic] 1.… …   Medical dictionary

  • sonolucency — sono·lu·cen·cy (son″o looґsən se) the property of being sonolucent …   Medical dictionary

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