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| English | Irish |
| aromatic compound Compounds characterized by the presence of at least one benzene ring | comhdhúil aramatach |
| aromatic hydrocarbon Hydrocarbons having an unsaturated ring containing alternating double and single bonds, especially containing a benzene ring | hideacarbón aramatach |
| aromatic substance Substance having a distinctive, usually fragrant smell | substaint aramatach |
| polycyclic aromatic hydrocarbon Hydrocarbons containing two or more closed rings of atoms | hidreacarbón aramatach iltimthriallach |