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Definition of: formaldehyde
(fôr·mal′də·hīd) noun Chem.
A colorless pungent gas, CH2O, obtained variously by the partial oxidation of methyl alcohol: used as an antiseptic, reagent, preservative, and disinfectant, for which it is prepared by solution in water or absorption into porous materials. It is also the basis of many important plastic materials, such as Bakelite, Formica, etc. Also for·mal′de·hyd (-hid). [<FORM(IC) + ALDEHYDE]
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