transvection

Etymology
. Coined in the genetic sense by Edward B. Lewis in 1954.

Noun

 * 1)  An epigenetic interaction between an allele on one chromosome and the corresponding allele on the homologous chromosome
 * Transvection effects include both activation and silencing.
 * 1)  A kind of linear mapping which leaves all points on one axis fixed, while other points are shifted parallel to the axis by a distance proportional to their perpendicular distance from the axis
 * a projective transvection
 * 1) The act of supernatural flight, such as by a witch.