This report describes the typical weather at the Logan International Airport (Boston, Massachusetts, United States) weather station over the course of an average February. It is based on the historical records from 1974 to 2012. Earlier records are either unavailable or unreliable.
Medical Definition of miscegenation. : a mixture of races; especially : marriage or cohabitation between a white person and a member of another race.
The term transformation is used to denote the genetic alteration of a cell caused by the uptake and expression of foreign DNA regardless of the mechanism involved. (Note that transformation has a second meaning defined in Chapter 6, namely, the process by which normal cells with a finite life span in culture are converted into continuously growing cells similar to cancer cells.)