from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A colorless aromatic liquid, C10H18O, obtained from citronella and certain other essential oils or produced synthetically and used in making perfumes and as a commercial flavoring.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The monoterpenoid aldehyde 3,7-dimethyloct-6-en-1-al responsible for the aroma of citronella oil
from The Century Dictionary and Cyclopedia
- n. A substance. CH2 = C(CH3) (CH2)3 CH(CH3)CH2CHO, found in citronella-oil, eucalyptus-oil, and lemon-oil. It boils at 205–208° C.
citronell(a) + -al3.(American Heritage® Dictionary of the English Language, Fourth Edition)