Noun
the product of two equal terms
Source: WordNetMan must not only make himself: the weightiest thing he has to do is to determine what he is going to be. He is causa sui to the second power. José Ortega y Gasset
If we have two spherical bodies of equal mass at a given distance from each other and insert a third spherical body of the same mass half way between the two we do not double the mass attraction between any two of the three. We increase the attraction by 2 to the second power which is 4. Buckminster Fuller
nine is the second power of three Source: Internet
gravity is inversely proportional to the square of the distance Source: Internet