Mathematics, Science, Engineering, Medicine
- Salicylic acid, a plant hormone
- Single action, a type of firearm trigger
- Spectral acceleration in seismology and earthquake engineering
- Spontaneous abortion
- Superabundant number, type of number (mathematical concept)
- Sustained action, a longer-acting form of a medication
- Unbarred spiral galaxy
Read more about this topic: SA
Famous quotes containing the word medicine:
“After you eat always take a walk, and you’ll never have to go to a medicine shop.”
—Chinese proverb.
Rhyme.
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