salicylaldehyde

or sal·i·cyl·ic al·de·hyde

[ sal-uh-sil-al-duh-hahyd or sal-uh-sil-ik al-duh-hahyd ]
/ ˌsæl ə sɪlˈæl dəˌhaɪd or ˈsæl əˈsɪl ɪk ˈæl dəˌhaɪd /

noun Chemistry.

an oily, slightly water-soluble liquid, C7H6O2, having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.

Origin of salicylaldehyde

1865–70; salicyl (see salicylic) + aldehyde