Glossary Terms (Simple List)
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Mollicutes
A class of bacteria which lack a cell wall. Mollicutes are small, typically about 0.1-0.5 &mum in size, and vary in form (trivial name: mycoplasma) (TR50)
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Monodispersed particles
Particles of uniform size in a dispersed phase. In the case of viruses, this term refers to free virus particles not agglomerated to other viruses or proteins in solution. (TR41)
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Most Probable Number (MPN) Method
A statistical method of estimating the number of viable organisms suspended in a liquid. (TR51)
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Multiplicity of Infection (MOI)
The average number of infectious units added per cell in an infection. (TR41)
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Multi-Use System (MUS)
An engineered process equipment solution for process management and unit operations designed for repeated use. (TR66)
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Mycoplasma
Small, flexible bacteria that lack a cell wall. Mycoplasma can pass through 0.2 μm and some 0.1 μm rated filters and are unaffected by some antibiotics, such as penicillin. (TR70) (TR47)
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Mycoplasma Reduction Filter
A sterilizing grade filter that also provides a log reduction value (or a titer reduction value) for a specified test mycoplasma according to the PDA Mycoplasma Consensus Method. (TR75)
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Naturally Occurring Endotoxin (NOE)
Endotoxin prepared from Gram-negative bacteria produced under defined conditions and with minimal nonchemical processing, e.g., centrifugation and filtration.(TR82)
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Needle (Cannula)
A thin, hollow, metal tube commonly used with a syringe to inject substances into the body. (TR73)
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Needle Shield (Needle Cover)
Rigid or flexible polymeric substance used to seal and protect the needle. (TR73)