formaldehyde: meaning, definition, pronunciation and examples
C1/C2Technical/Scientific
Quick answer
What does “formaldehyde” mean?
A colourless, strong-smelling gas (HCHO) used in solution as a disinfectant and preservative, and in the manufacture of resins.
Audio
Pronunciation
Definition
Meaning and Definition
A colourless, strong-smelling gas (HCHO) used in solution as a disinfectant and preservative, and in the manufacture of resins.
A simple organic compound, the first member of the aldehyde series, widely used in industrial processes and chemical synthesis. It is a known human carcinogen in concentrated or long-term exposure.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. Spelling is consistent.
Connotations
Universally associated with preservation (e.g., biological specimens), industrial manufacturing, and health hazards.
Frequency
Equally low-frequency in general discourse but common in scientific, industrial, medical, and health-safety contexts in both regions.
Grammar
How to Use “formaldehyde” in a Sentence
be treated with formaldehydeemit/formaldehydecontain formaldehydebe exposed to formaldehydebe derived from formaldehydeVocabulary
Collocations
Examples
Examples of “formaldehyde” in a Sentence
verb
British English
- [No standard verb form]
American English
- [No standard verb form]
adverb
British English
- [No standard adverb form]
American English
- [No standard adverb form]
adjective
British English
- The formaldehyde-based resin was used.
- They conducted a formaldehyde emission test.
American English
- The formaldehyde resin is common in plywood.
- Formaldehyde exposure levels were measured.
Usage
Meaning in Context
Business
Discussed in supply chains for furniture, textiles, and building materials regarding compliance with emission standards.
Academic
Frequent in chemistry, biology, medicine, materials science, and environmental health research papers.
Everyday
Rare, except in contexts like home air quality testing, new furniture smell, or news reports on product safety.
Technical
Core term in industrial chemistry, pathology labs (as formalin), mortuary science, and regulatory toxicology.
Vocabulary
Synonyms of “formaldehyde”
Strong
Neutral
Weak
Vocabulary
Antonyms of “formaldehyde”
Watch out
Common Mistakes When Using “formaldehyde”
- Pronouncing it as 'for-MAL-de-hyed'. Stress is on the second syllable.
- Using as a countable noun (e.g., 'a formaldehyde').
- Confusing 'formaldehyde' (gas/pure compound) with 'formalin' (the solution).
FAQ
Frequently Asked Questions
Yes, it is produced in small amounts by most living organisms as part of normal metabolic processes.
Formaldehyde is the pure chemical gas (HCHO). Formalin is a saturated solution of formaldehyde gas in water (typically 37-40%), often with methanol added to prevent polymerization.
It fixes (preserves) tissues by cross-linking proteins and nucleic acids, preventing decay and maintaining cellular structure for microscopic examination.
Partially. That 'new smell' often comes from volatile organic compounds (VOCs), including formaldehyde, off-gassing from glues, fabrics, and plastics.
A colourless, strong-smelling gas (HCHO) used in solution as a disinfectant and preservative, and in the manufacture of resins.
Formaldehyde: in British English it is pronounced /fɔːˈmældɪhaɪd/, and in American English it is pronounced /fɔːrˈmældəˌhaɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think: 'FORM' (to shape) + 'ALDEHYDE' (a type of chemical) = the chemical used to 'form' or preserve the shape of specimens.
Conceptual Metaphor
PRESERVATION IS FIXING IN FORM (as it fixes biological tissues).
Practice
Quiz
Which of the following is a common commercial product primarily associated with formaldehyde?