moment of a force, \(M\)

https://doi.org/10.1351/goldbook.M04005
About a point is the vector product of the radius vector from this point to a point on the line of action of the force and the force, \(M=r\times F\).
Sources:
Green Book, 2nd ed., p. 12 [Terms] [Book]
ISO, 31-2 [Terms] [Book]