formol

[fawr-mawl, -mohl] /ˈfɔr mɔl, -moʊl/
noun, Chemistry
1.
Origin
1890-95; formerly trademark
British Dictionary definitions for formol

formalin

/ˈfɔːməlɪn/
noun
1.
a 40 per cent solution of formaldehyde in water, used as a disinfectant, preservative for biological specimens, etc