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salicylaldehyde

American  
[sal-uh-sil-al-duh-hahyd] / ˌsæl ə sɪlˈæl dəˌhaɪd /
Also salicylic aldehyde

noun

Chemistry.
  1. an oily, slightly water-soluble liquid, C 7 H 6 O 2 , having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.


Etymology

Origin of salicylaldehyde

1865–70; salicyl ( salicylic ) + aldehyde