- adenine, adenine nucleotide
- nucleosideA compound made of a sugar and a nitrogen base, found in DNA and RNA; formed when a purine or pyrimidine base connects to a five-carbon sugar.
- 三 numeralthreethe number three; 3
- phosphoric acidan inorganic acid used for making fertilizers, dyes, medicines, and fireworks; it appears as colorless crystals or a thick liquid and is easily dissolved by water in the air