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An aqueous solution of formaldehyde that is 37 percent by weight, usually also containing 10 to 15 percent methanol to prevent polymerization of the formaldehyde.
[Originally a trademark.]
(Chemistry) a 40 per cent solution of formaldehyde in water, used as a disinfectant, preservative for biological specimens, etc
for•ma•lin(ˈfɔr mə lɪn)
a clear, colorless, aqueous solution of 40 percent formaldehyde.
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|Noun||1.||formalin - a 10% solution of formaldehyde in water; used as a disinfectant or to preserve biological specimens|
solution - a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution; "he used a solution of peroxide and water"