de‧men‧tia /dɪˈmenʃə, -ʃiə $ -tʃə/
noun [uncountable][
Date: 1700-1800;
Language: Latin;
Origin: mens 'mind']
an illness that affects the brain and memory, and makes you gradually lose the ability to think and behave normally
[TahlilGaran] Dictionary of Contemporary English ▲