formalin: meaning, definition, pronunciation and examples
C2Technical/Scientific
Quick answer
What does “formalin” mean?
A solution of formaldehyde in water, used as a disinfectant and preservative, especially for biological specimens.
Audio
Pronunciation
Definition
Meaning and Definition
A solution of formaldehyde in water, used as a disinfectant and preservative, especially for biological specimens.
In broader usage, the term can refer to any formaldehyde-based preservative or fixative solution used in scientific and industrial contexts.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. Spelling is consistent. Both varieties use 'formalin'.
Connotations
Identical technical and negative sensory connotations (strong odour, toxicity).
Frequency
Equally rare in everyday speech in both regions, confined to scientific/medical/industrial contexts.
Grammar
How to Use “formalin” in a Sentence
[subject] preserved/fixed/soaked [object] in formalin.Formalin is used for [purpose].Vocabulary
Collocations
Examples
Examples of “formalin” in a Sentence
verb
British English
- [Not applicable as a verb]
American English
- [Not applicable as a verb]
adverb
British English
- [Not applicable as an adverb]
American English
- [Not applicable as an adverb]
adjective
British English
- The formalin-fixed tissue was ready for sectioning.
- A formalin-like odour permeated the lab.
American English
- The formalin-preserved specimen was analyzed.
- They noted a formalin-based preservative.
Usage
Meaning in Context
Business
Rare; might occur in manufacturing (chemicals, textiles) or laboratory supply procurement.
Academic
Common in biology, medicine, histology, and pathology papers and lab protocols.
Everyday
Extremely rare; used only when discussing specific scientific processes or experiences (e.g., dissection).
Technical
The primary domain. Used in laboratory manuals, safety data sheets, and scientific reports concerning specimen preservation.
Vocabulary
Synonyms of “formalin”
Vocabulary
Antonyms of “formalin”
Watch out
Common Mistakes When Using “formalin”
- Using it as a countable noun (e.g., 'a formalin').
- Confusing it with 'formula' or 'form'.
- Misspelling as 'formeline' or 'formoline'.
- Using in non-technical contexts where 'preservative' or 'disinfectant' would be more appropriate.
FAQ
Frequently Asked Questions
Yes. Formalin is toxic, irritating to the eyes, skin, and respiratory system, and is a suspected carcinogen. It must be handled with appropriate safety precautions in a controlled environment like a laboratory.
Formaldehyde (HCHO) is a pungent gas. Formalin is a liquid solution of that gas dissolved in water, typically at a concentration of 37-40%. 'Formalin' is the common name for the solution used in practice.
While its primary use is in science and medicine, it has historical and niche uses in other fields, such as in some disinfectants, in embalming fluids, and in the production of certain industrial products and textiles. Its use is heavily regulated.
The strong, sharp odour comes from formaldehyde gas evaporating from the solution. This vapour is what makes it so irritating to mucous membranes.
A solution of formaldehyde in water, used as a disinfectant and preservative, especially for biological specimens.
Formalin: in British English it is pronounced /ˈfɔː.mə.lɪn/, and in American English it is pronounced /ˈfɔːr.mə.lɪn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think: 'FORMALdehyde solutLIN' -> FORMA(LIN). It's the FORMAL chemical used to keep things IN their original shape.
Conceptual Metaphor
LIQUID MEMORY (It captures and holds the physical state of biological matter, 'remembering' its structure).
Practice
Quiz
In which of the following contexts is the word 'formalin' most appropriately used?