1. 
   Material Type
   Classification of suspect material by its specific use or application; e.g., pipe insulation, fireproofing, and floor tile.
   Found op http://www.epa.gov/OCEPAterms/
   
   
2. 
   MathType
   MathType is a software application created by Design Science that allows the creation of mathematical notation for inclusion in desktop and web applications. == Features == MathType is a graphical editor for mathematical equations, allowing entry with the mouse or keyboard in a full graphical WYSIW...
   Found op http://en.wikipedia.org/wiki/MathType
   
   
3. 
   Mating type
   Mating types are molecular mechanisms that regulate compatibility in sexually reproducing eukaryotes. They occur in isogamous and anisogamous species. Depending on the group, different mating types are often referred to by numbers, letters, or simply "+" and "-" instead of "male" and "female", that...
   Found op http://en.wikipedia.org/wiki/Mating_type
   
   
4. 
   Mating type
   A group within a species classified on the basis of its mating behaviour. Fungi often have genes that control mating type at 1, 2 or even 3 loci and there may be multiple alleles at each locus. In heterothallic species, individuals must differ in mating type alleles at each locus for mating to occ...
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   

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