1. infectious disease a disease transmitted only by a specific kind of contact
  2. facetious cleverly amusing in tone
  3. infectious hepatitis an acute but benign form of viral hepatitis caused by an RNA virus that does not persist in the blood serum and is usually transmitted by ingesting food or drink that is contaminated with fecal matter
  4. insidious working or spreading in a hidden and usually injurious way
  5. contagious disease any disease easily transmitted by contact
  6. inherited disease a disease or disorder that is inherited genetically
  7. infectious agent an agent capable of producing infection
  8. infectious mononucleosis an acute disease characterized by fever and swollen lymph nodes and an abnormal increase of mononuclear leucocytes or monocytes in the bloodstream; not highly contagious; some believe it can be transmitted by kissing
  9. infectious relating to the invasion of germs that cause disease
  10. inefficaciousness a lack of efficacy
  11. Paget's disease a disease of bone occurring in the middle aged and elderly
  12. inflammatory disease a disease characterized by inflammation
  13. Banti's disease a disease characterized by congestion and enlargement of the spleen; accompanied by anemia or cirrhosis
  14. incautiousness the trait of forgetting or ignoring possible danger
  15. infectiously in a contagious manner
  16. infectious polyneuritis a form of peripheral polyneuritis characterized by pain and weakness and sometimes paralysis of the limbs; cause is unknown
  17. unaffectedness not affected
  18. inference a conclusion you can draw based on known evidence
  19. insecticide a chemical used to kill bugs
  20. Albright's disease fibrous dysplasia of bone affecting multiple bones