Webster’s Revised Unabridged Dictionary · 1913
Varioloid
Va′ri·o·loid, a. [Variola + -oid: cf. F. varioloïde.] (Med.) Resembling smallpox; pertaining to the disease called varioloid.
Va′ri·o·loid, n. [Cf. F. varioloïde. See Varioloid, a.] (Med.) The smallpox as modified by previous inoculation or vaccination.
☞ 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.