astereognosis

noun
astere·​og·​no·​sis | \ (ˈ)ā-ˌster-ē-äg-ˈnō-səs, -ˌstir- How to pronounce astereognosis (audio) \
plural astereognoses\ -​ˌsēz How to pronounce astereognoses (audio) \

Medical Definition of astereognosis

: loss of the ability to recognize the shapes of objects by handling them