formaldehyde

Definitions of formaldehyde
  1. noun
    a colorless poisonous gas; made by the oxidation of methanol
    synonyms: methanal
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    type of:
    aldehyde
    any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids
    gas
    a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
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