Noun
Hib (uncountable)
Haemophilus influenzae, serotype b: a particular type of bacterium responsible for pneumonia, meningitis, and other diseases.
Hib (plural Hibs)
Short for Hibernian.; Someone associated with Hibernian Football Club, as a player, coach, fan etc.
However, introduction of the H. influenza type B (Hib) vaccine has dramatically decreased H. influenza type B infections and now non-typable H. influenza (NTHI) are predominantly seen in clinics. Source: Internet