Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun formaldehyde

1 sense of formaldehyde

Sense 1
formaldehyde, methanal -- (a colorless poisonous gas; made by the oxidation of methanol)
       => 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)