formaldehyde
noun/fɔːˈmældɪhaɪd/
/fɔːrˈmældɪhaɪd/
[uncountable]- (symbol CH2O)a gas with a strong smell
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- (also specialist formalin)a liquid made by mixing formaldehyde and water, used for preserving biological specimens, making plastics and as a disinfectant
- His most famous artistic offering consists of a dead shark floating in a tank of formaldehyde.
Word Originlate 19th cent.: blend of formic acid and aldehyde.
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formaldehyde