IPA: /ˌkætəˈtoʊniə/
KK: /kætəˈtoʊniə/
A mental state where a person is unable to move or respond normally, often seen in severe mental disorders.
During her episode of catatonia, she remained completely still and unresponsive for hours.
Catatonia is formed from "kata-" (meaning down) and "tonos" (meaning tension or tone). The term describes a state of physical and mental immobility, often characterized by a lack of response or movement, as if the body is in a state of reduced tension or tone.
Think of 'down' ('kata-') and 'tension' ('tonos') to remember that catatonia refers to a state of reduced physical and mental activity.