brainbox

/ˈbɹeɪn(ˌ)bɒks/
noun 3

Definitions

noun

1

The cavity of the skull in which the brain is contained.

Holonyms: skull, cranium < head

The compromise was to use as much of the skull as possible by pushing the eyes in towards the centre, and relegating the brain box to the rear.

2

The skull; the head.

3

A very intelligent person.

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