What are alternating generations?

Some articles on alternating generations, generation:

Cognati - Identification of Alternating Generations
... such as Chiricahua, use the same terms of address for alternating generations ... Terms that recognize alternating generations and the prohibition of marriage within one's own set of alternate generation relatives (0, ±2, ±4, ±6 ...

Famous quotes containing the word generations:

    I’ve finally figured out why soap operas are, and logically should be, so popular with generations of housebound women. They are the only place in our culture where grown-up men take seriously all the things that grown-up women have to deal with all day long.
    Gloria Steinem (b. 1934)