单词	sonogram
释义	sonogram /ˈsəʊnəɡram / noun 1A graph representing a sound, showing the distribution of energy at different frequencies.A link brings you to an informative introduction, followed by a list of six birds whose sounds are represented as sonograms and in musical notation.... Cross-correlation coefficients computed from comparisons of sonograms reflect differences in the spectral and temporal characteristics of the call, as well as differences in signal-to-noise ratio. After amassing a collection of sonograms, scientists can build a dictionary of sounds and search for patterns. 2A visual image produced from an ultrasound examination.In contrast, a bilateral, solid, irregular, and fixed mass palpated or seen on sonogram should alert the clinician to a possible carcinoma.... A sonogram uses sound waves to make pictures of organs in the body. Instead, he may use sound waves for a sonarlike mapping power that doesn't need x-rays - much as doctors use sound to create sonograms of unborn babies.
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