brain sand

n.

A gritty substance present in central nervous tissue or in the pineal gland. acervulus psammoma body

Words nearby brain sand

brain fingerprinting, brain freeze, brain gain, brain hormone, brain mantle, brain sand, brain scan, brain someone, brain sugar, brain swelling, brain trust

Example sentences from the Web for brain sand

  • This pigment is apparently calcium phosphate, which still remains as the 'brain-sand' of the human pineal gland.

    The Origin of Vertebrates |Walter Holbrook Gaskell

  • It contains a small quantity of peculiar particles of gritty, sand-like substance, which are sometimes called "brain-sand."

    Clairvoyance and Occult Powers |Swami Panchadasi