What is "weaning brash"

Weanling \Wean"ling\, a. & n. from Wean, v.

The weaning of the whelp is the great test of the skill of the kennel man.
--J. H. Walsh.

Weaning brash. (Med.) See under Brash.

Brash \Brash\, n. [See Brash brittle.]

1. A rash or eruption; a sudden or transient fit of sickness.

2. Refuse boughs of trees; also, the clippings of hedges. [Prov. Eng.]
   --Wright.

3. (Geol.) Broken and angular fragments of rocks underlying alluvial deposits.
   --Lyell.

4. Broken fragments of ice.
   --Kane.

   Water brash (Med.), an affection characterized by a spasmodic pain or hot sensation in the stomach with a rising of watery liquid into the mouth; pyrosis.

   Weaning brash (Med.), a severe form of diarrhea which sometimes attacks children just weaned.

n. (context medicine English) A severe form of diarrhea which sometimes attacks children just weaned.