fortune definition: The definition of fortune is wealth, good luck or what is going to happen. (noun) An example of fortune is what someone had after inheriting millions of dollars. An example of fortune is the luck of having oil discovered on an ot...
1 Polarity (physics), a physical alignment of atoms. 2  Cell polarity, differences in the shape, structure, and function of cells. 3  Chemical polarity, a concept in chemistry which describes how equally bonding electrons are shared between atoms.  Polar reciprocation, a concept in geometry also known as polarity.
Part of the Electronics glossary: Permittivity, also called electric permittivity, is a constant of proportionality that exists between electric displacement and electric field intensity. This constant is equal to approximately 8.85 x 10-12 farad per meter (F/m) in free space (a vacuum).