• quaternary
• quaternary care
• quaternary ammonium
• quaternary compound
• quaternary industry
• quaternary compounds
• quaternary healthcare
• quaternary structures
• quaternary ammonium compound
• quaternary ammonium compounds

quaternary (suomeksi)

• kvartäärikausi (s: geological period)
• neljännen asteen (a: of fourth rank or order / of mathematical expressions)