- The vibrations produced by a sounding body, transmitted by the air or other medium, and perceived by the internal ear.
- An elongated cylindric, usually curved, metal instrument, used for exploring the bladder or other cavities of the body, for dilating strictures of the urethra, esophagus, or other canal, for calibrating the lumen of a body cavity, or for detecting the presence of a foreign body in a body cavity.
- To explore or calibrate a cavity with a sound.
- Whole; healthy; not diseased or injured.
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