Dictionary.com
Thesaurus.com

nominal aphasia

British  

noun

  1. aphasia in which the primary symptom is an inability to recall or recognize the names of objects

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Not only do I have galloping nominal aphasia - the inability to remember names - I'm also alarmed by the erosion of my cognitive powers, full stop.

From BBC

Perhaps only Amis could make someone suffering from nominal aphasia as funny as he is touching.

From The Guardian