\Va"ri*o*loid\ (?; 277), a. [Variola + -oid: cf. F. variolo["i]de.] (Med.) Resembling smallpox; pertaining to the disease called varioloid.
\Va"ri*o*loid\, n. [Cf. F. variolo["i]de. See {Varioloid}, a.] (Med.) The smallpox as modified by previous inoculation or vaccination. Note: 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.