sonogram
Meaning
A visual image produced from ultrasound waves, used especially to examine internal organs or a developing fetus.
A graph representing a sound, showing the distribution of energy at different frequencies.
Structure
Usage
The doctor examined the sonogram to check the baby's development.
A sonogram of the heart can help diagnose valve problems.
The audio engineer used a sonogram to analyze the spectral content of the recording.
Etymology
The word 'sonogram' is a modern scientific compound formed in the 20th century. It combines the Latin-derived form 'sono-', relating to sound, with the Greek-derived suffix '-gram', meaning a record or picture. The term's literal construction, "a record of sound," directly reflects its function: it is a visual record or image created from inaudible high-frequency sound waves (ultrasound). This etymological logic clearly bridges the ancient roots—'sonus' for sound in Latin and 'graphein' (to write) in Greek—to the modern medical and acoustic technology that captures internal bodily structures or analyzes sound frequencies.
Analysis
- sono: From Latin sonus, meaning "sound". It functions as a combining form indicating a relationship to sound or sound waves. - gram: From Greek gramma, meaning "something written" or "a record". It functions as a suffix denoting something drawn or written, a record.