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paraformaldehyde
Abbreviation - para
UMLS ID - C0070066
Semantic Type Listed - Organic Chemical
Definition - A very low molecular weight polymer of formaldehyde, or a mixture of polyoxymethylene glycols, in the form of a white solid which easily depolymerizes by heating to yield formaldehyde gas and water vapor. Often used by histologists to refer to formaldehyde that has been prepared freshly from paraformaldehyde.
Source - http://composite.about.com/library/glossary/p/bldef-p3792.htm
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