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| an obscure term ostensibly referring to a lung disease caused by silica dust, sometimes cited as one of the longest words in the English language. |
| (used as a nonsense word by children to express approval or to represent the longest word in English.) |
Propionibacterium Pro·pi·on·i·bac·te·ri·um (prō'pē-ŏn'ə-bāk-tēr'ē-əm)
n.
A genus of saphrophytic nonmotile gram-positive bacteria, usually anaerobic, that occur in dairy products, on the skin, and in the intestinal tract; certain species may be pathogenic.