breed

Although a scab seems like it is on good and tight, it is basically a dried blood clot waiting to finish its job before it falls off.

Last year, a scab epidemic crippled the wheat industry in the southeastern United States.

Sometimes the buckle will open up, allowing the metal to run through the crack in the sand and fill the void behind the buckle to create a scab (Fig.

Short pants and bathing suits meant scrapes and cuts that eventually would form a scab, but I would try to remove it too soon with the result that the healing took longer.

This could have a contrary effect--as when a scab eradication programme was launched at the beginning of the twentieth century.