- phonocatheter
- A cardiac catheter with diminutive microphone in its tip, for recording sounds and murmurs from within the heart and great vessels.
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pho·no·cath·e·ter (fo″no-kathґə-tər) a device similar in appearance to a conventional catheter, with a microphone at the tip; used in recording the sounds of the heart and great vessels.
Medical dictionary. 2011.