roseola noun. [rǝ(ʊ)'zi:ǝlǝ, rɒzɪ'ǝʊlǝ] E19.
[from Latin roseus rose-coloured + dim. suffix -ola, after rubeola.]
Medicine. A rose-coloured rash occurring in measles, syphilis, typhoid fever, etc. Formerly also, rubella.

■ roseolar adjective of, pertaining to, or of the nature of roseola L19.

■ roseolous adjective roseolar M19.

[TahlilGaran] English Dictionary ▲