per·ill·aldehyde \|perə̇l+\noun Etymology:perilla (oil) + aldehyde : a liquid compound C3H5C6H8CHO found especially in the essential oil of an Asiatic mint (Perilla frutescens var. nankinensis) and yielding an anti-oxime that is about 2000 times sweeter than sucrose; 4-isopropenyl-3,4,5,6-tetrahydro-benzaldehyde