An ulcer characteristic of Barcoo rot.
 I had one hard Barcoo sore on my right hand to begin with
 Example sentencesExamples
-  If this plant is included in a man's diet for a week, barcoo sores will heal and all trace of the disease will vanish.
 -  He supposes subclinical infections to be the cause, also considering in this respect skin affections as 'Barcoo sore', and 'desert sore'.
 -  My legs were covered with barcoo sores that would not heal.
 -  Sudden changes in temperature made any “Barcoo” sores most painful.
 -  His arm in a sling and he's full of Barcoo sores.