| 释义 |
Definition of formaldehyde in English: formaldehydenoun fɔːˈmaldɪhʌɪd mass nounChemistry A colourless pungent gas in solution made by oxidizing methanol. Alternative name: methanal; chemical formula: CH₂O Example sentencesExamples - They are produced by the polymerization reaction of phenol and formaldehyde.
- Bleach, ethyl alcohol, and formaldehyde can kill the virus in the environment.
- The metabolic byproducts of aspartame are methanol and formaldehyde.
- Set on fire, these items release formaldehyde, polyvinyl chloride, and dioxins.
- Formalin, a solution of formaldehyde, is also used in tanning leather and preserving corpses.
Origin Late 19th century: blend of formic acid and aldehyde. Definition of formaldehyde in US English: formaldehydenoun Chemistry A colorless pungent gas in solution made by oxidizing methanol. Alternative name: methanal; chemical formula: CH₂O Example sentencesExamples - Formalin, a solution of formaldehyde, is also used in tanning leather and preserving corpses.
- Set on fire, these items release formaldehyde, polyvinyl chloride, and dioxins.
- Bleach, ethyl alcohol, and formaldehyde can kill the virus in the environment.
- They are produced by the polymerization reaction of phenol and formaldehyde.
- The metabolic byproducts of aspartame are methanol and formaldehyde.
Origin Late 19th century: blend of formic acid and aldehyde. |