transvection

noun3

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.
2. •
   The act of supernatural flight, such as by a witch.

   • In transvection witches rode broomsticks, a classical phallic symbol. — 1996
3. •
   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