Langimage
English

astereognosis

|as-te-re-o-gno-sis|

C2

🇺🇸

/ˌæstɛriəˈɡnoʊsɪs/

🇬🇧

/ˌæstɛəriəˈɡnɒsɪs/

loss of touch-based object recognition

Etymology
Etymology Information

'astereognosis' originates from Greek via New Latin, specifically from the prefix 'a-' (privative) and the elements 'stereon' meaning 'solid' and 'gnōsis' meaning 'knowledge'.

Historical Evolution

'astereognosis' was coined in modern medical/neurological terminology from the Greek elements (through Neo-Latin formation) and entered English medical usage in the late 19th to early 20th century.

Meaning Changes

Initially formed to denote the absence of knowledge of solid objects by touch; this technical meaning has been preserved in medical usage.

Meanings by Part of Speech

Noun 1

inability to recognize or identify objects by touch despite intact tactile sensation; tactile agnosia.

The patient exhibited astereognosis and could not identify a key placed in his hand by touch alone.

Synonyms

Antonyms

stereognosis

Last updated: 2025/11/05 18:18