What is "abirritation"

Abirritation \Ab*ir`ri*ta"tion\, n. (Med.) A pathological condition opposite to that of irritation; debility; lack of strength; asthenia.

n. 1 (context medicine English) A pathological condition opposite to that of irritation; debility; want of strength; asthenia; atony. 2 (context medicine English) Decreased response to stimuli.