English · Body & Health
brain
/breɪn/
[/breɪn/]
organ of thought
Beginnernoun
Definition
The organ inside the head that controls thought, memory, and the body.
Example
The human brain can store an astonishing amount of information over a lifetime.
The human brain can store an astonishing amount of information over a lifetime.
Etymology
From Old English 'brægen', of Germanic origin.
How & Where It’s Used
'Brainstorm' and 'brainy' come from this central organ.