Fairfield, California. Fairfield is a city in, and the county seat of, Solano County, California, United States.
governor of a fourth part. Dictionaries-Smith's Bible Dictionary-Tetrarch, properly the sovereign or governor of the fourth part of a country. (Matthew 14:1; Luke 3:1; 9:7; Acts 13:1) The title was, however, often applied to any one who governed a Roman province, of whatever size. The title of king was sometimes assigned to a tetrarch.
It is a group of four things, like cells, spores, anything biological. I would recommend looking at Wikipedia for more examples. . A tetrad is a group of four. It may refer to: Tetrad (chromosomal formation) Tetrad (genetics), the four spores of a yeast; Tetrad (general relativity), a mathematical frame of reference in general relativity; Tetrad (index notation), a concept in differential geometry; Tetrad (music), a set of four notes; Tetrad (symbol) or tetractys; Tetrad (unit of area) Tetrad, a group of four haploid and immature pollen grains in tetrahedral fashion produced by meiotic microsporogenesis Tetrad (astronomy), an occurrence of 4 total lunar eclipses in a row with intervals of 6 lunations .