#a
English
Edit on Github- a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron)
- Pos: noun
- any of several fat-soluble vitamins essential for normal vision
- Pos: noun
- one of the four nucleotides used in building DNA
- Pos: noun
- (biochemistry) purine base found in DNA and RNA
- Pos: noun
- the basic unit of electric current adopted under the Systeme International d'Unites
- Pos: noun
- the 1st letter of the Roman alphabet
- Pos: noun
- the blood group whose red cells carry the A antigen
- Pos: noun
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