There thou mayst brain him. --Shak.
It was the swift celerity of the death . . . That
brained my purpose. --Shak.
2. To conceive; to understand. [Obs.]
?T is still a dream, or else such stuff as madmen
Tongue, and brain not. --Shak.
Note: In the brain of man the cerebral lobes, or largest part
of the forebrain, are enormously developed so as to
overhang the cerebellum, the great lobe of the
hindbrain, and completely cover the lobes of the
midbrain. The surface of the cerebrum is divided into
irregular ridges, or convolutions, separated by grooves
(the so-called fissures and sulci), and the two
hemispheres are connected at the bottom of the
longitudinal fissure by a great transverse band of
nervous matter, the corpus callosum, while the two
halves of the cerebellum are connected on the under
side of the brain by the bridge, or pons Varolii.
2. (Zo["o]l.) The anterior or cephalic ganglion in insects
and other invertebrates.
3. The organ or seat of intellect; hence, the understanding.
`` My brain is too dull.'' --Sir W. Scott.
Note: In this sense, often used in the plural.
4. The affections; fancy; imagination. [R.] --Shak.
{To have on the brain}, to have constantly in one's thoughts,
as a sort of monomania. [Low]
{Brain box} or {case}, the bony on cartilaginous case
inclosing the brain.
{Brain coral}, {Brain stone coral} (Zo["o]l), a massive
reef-building coral having the surface covered by ridges
separated by furrows so as to resemble somewhat the
surface of the brain, esp. such corals of the genera
{M[ae]andrina} and {Diploria}.
{Brain fag} (Med.), brain weariness. See {Cerebropathy}.
{Brain fever} (Med.), fever in which the brain is specially
affected; any acute cerebral affection attended by fever.
{Brain sand}, calcareous matter found in the pineal gland.