salicylaldehyde
noun
sal·i·cyl·al·de·hyde
| \ -ˈal-də-ˌhīd
\
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Medical Definition of salicylaldehyde
: an oily liquid phenolic aldehyde C7H6O2 that has a bitter almond odor and is used chiefly in perfumery and in making coumarin
— called also salicylic aldehyde