🎼🎶 ‘If I only had a ____ … ’ sang the scarecrow.

noun

1. The portion of the vertebrate central nervous system enclosed in the skull and continuous with the spinal cord through the foramen magnum that is composed of neurons and supporting and nutritive structures (such as glia) and that integrates sensory information from inside and outside the body in controlling autonomic function (such as heartbeat and respiration), in coordinating and directing correlated motor responses, and in the process of learning compare forebrain, hindbrain, midbrain
2. A nervous center in invertebrates comparable in position and function to the vertebrate brain
3. Something that performs the functions of a brain

verb

1. To kill by smashing the skull
2. To hit on the head

noun

1. Stroke

noun

1. A massive reef-building coral (such as genus Diploria) having the surface covered by ridges and furrows

noun

1. A mental lapse caused especially by carelessness, forgetfulness, or inattention

adjective

1. Characterized by brain death
2. Lacking intelligence or vitality

   "brain-dead fools"

noun

1. Final cessation of activity in the central nervous system especially as indicated by a flat electroencephalogram for a predetermined length of time

noun

1. The departure of educated or professional people from one country, economic sector, or field for another usually for better pay or living conditions

noun

1. The act or an instance of comprehensively and uncritically expressing and recording one's thoughts and ideas (as on a particular topic)

   "Instead, Shafer recommends doing a brain dump—getting workflow, ideas, commitments, and to-do lists out of your head and onto a physical list and calendar."

noun

1. A usually temporary state of diminished mental capacity marked by inability to concentrate or to think or reason clearly