(chiefly US) Originally, a group of experts who advise a government, often informally. / More recently, any group of experts assembled to give advice.

A bra specifically designed for breastfeeding mothers, with cups which fold down, allowing easy access to the nipple when the infant is to be fed, usually constructed of fabric only.

Alternative form of brainwave

(idiomatic) Obsessively in mind.

Someone who does brain surgery. / (idiomatic) Someone very intelligent.

Any of many rhythmic fluctuations of electric potential between parts of the brain, especially those seen on an electroencephalogram / A sudden idea, understanding, or inspiration; a brainstorm

present participle of brace

Invigorating or stimulating.

(uncountable) That which braces. / (countable) A brace. / (US) A form of the military attention stance.

impetuous and rash; hot-headed