## Wikipedia - Accelerazione di gravità acceleration, $$a$$

https://doi.org/10.1351/goldbook.A00051
Vector quantity equal to the derivative of @V06607@ with respect to time. For the @A00053@ the symbol $$g$$ is used.
Sources:
Green Book, 2nd ed., p. 11 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 960 [Terms] [Paper]