[ noun ] a small hard painless nodule at the site of entry of a pathogen (as syphilis) <noun.state>
Chancre \Chan"cre\, n. [F. chancere. See {Cancer}.] (Med.) A venereal sore or ulcer; specifically, the initial lesion of true syphilis, whether forming a distinct ulcer or not; -- called also {hard chancre}, {indurated chancre}, and {Hunterian chancre}.
{Soft chancre}. A chancroid. See {Chancroid}.
The disease, which produces chancre sores, is treated with antibiotics.