The Collaborative International Dictionary of English v.0.48:

Scarlatina \Scar`la*ti"na\, n. [NL.: cf. F. scarlatine. See
   Scarlet.] (Med.)
   Scarlet fever. -- Scar`la*ti"nal, a. -- Scar*lat"i*nous
   (# or #), a.
   [1913 Webster]