A
nounverified·updated May 18, 2026
the unit symbol for the ampere, the basic unit of electric current adopted under the Systeme International d'Unites
Framework senses
- §1
- the unit symbol for the ampere, the basic unit of electric current adopted under the Systeme International d'Unites
- §2
- short form for adenine, a purine base found in DNA and RNA
- §3
- one of the four nucleotides used in building DNA
- §4
- any of several fat-soluble vitamins essential for normal vision