varioloid

n. [ Cf. F. varioloïde. See Varioloid, a. ] (Med.) The smallpox as modified by previous inoculation or vaccination. [ 1913 Webster ]

☞ It is almost always a milder disease than smallpox, and this circumstance, with its shorter duration, exhibits the salutary effects of previous vaccination or inoculation. Dunglison. [ 1913 Webster ]