Chancre

(shangr-ker). A term formerly used indiscriminately for any primary venereal ulcer, but now generally conceded to signify the initial lesion of syphilis, a true infecting sore, followed by constitutional symptoms (see Syphilis); while chancroid is employed to designate the infectious but non-constitutional sore. C, Hard, Hunter i an, Indurated, Infecting, Non-suppurating, or True, the ulcer of venereal origin, that is followed by constitutional syphilis. C, Non-incubatory, Non-infecting, Simple, or Soft, a contagious, suppurating, non syphilitic venereal ulcer, properly called chancroid. C., Phagedenic, chancroid with a tendency to erosion. C, Serpiginous, a variety of the last that spreads superficially in curved lines.