rhinolalia (?ra?n???le?l??) n (Medicine) a nasal tone to the voice which is caused by a defect in the nasal passages. Also called: rhinophonia Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014