a 40 per cent solution of formaldehyde in water, used as a disinfectant, preservative for biological specimens, etc
WordReference Random House Unabridged Dictionary of American English © 2025
for•ma•lin
(fôr′mə lin),USA pronunciation n. [Chem.]
- Chemistrya clear, colorless, aqueous solution of 40 percent formaldehyde. Also called formol.
- formerly a trademark 1890–95
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