sonograph

/ˈsɑnəɡræf/
noun
  1. A device that produces images or records of sound waves, especially for medical ultrasound or seismic studies.
    • Geologists used a sonograph to map the layers of rock beneath the ocean floor.
    • The hospital purchased a new sonograph for the radiology department.
    • The technician adjusted the sonograph to get a clearer image of the patient's abdomen.
  2. A graph or visual representation of sound frequencies over time, such as a spectrogram.
    • By looking at the sonograph, the engineer could identify the different sounds in the recording.
    • The sonograph showed a sudden spike in noise when the machine started.
    • The linguist analyzed the sonograph of the bird's song to study its pitch patterns.
Synonyms