| Florey unit | <microbiology> The minimum amount of penicillin which will prevent the growth of Staphylococcus aureus over an area 26 mm in diameter in a standard culture medium; 1 unit equals 0.6 ug of crystalline sodium salt of penicillin. Synonym: Florey unit. (05 Mar 2000) |
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| Florey, Sir Howard | <person> Australian-British pathologist and Nobel laureate, 1898-1968. See: Florey unit. (05 Mar 2000) |