'Infectious disease' definitions:

Definition of 'infectious disease'

From: WordNet
noun
A disease transmitted only by a specific kind of contact

Definition of 'Infectious disease'

From: GCIDE
  • Infectious disease \In*fec"tious dis*ease"\ (a) Any disease caused by the entrance, growth, and multiplication of microorganisms in the body; a germ disease. It may not be contagious. (b) Sometimes, as distinguished from contagious disease, such a disease communicated by germs carried in the air or water, and thus spread without contact with the patient, as measles. [Webster 1913 Suppl.]

Synonyms of 'infectious disease'

From: Moby Thesaurus