Heterotopism \Het`er*ot"o*pism\, Heterotopy \Het`er*ot"o*py\, n.
[Hetero- + Gr. ? place: cf. F. h['e]t['e]rotopie.]
1. (Med.) A deviation from the natural position; -- a term
applied in the case of organs or growths which are
abnormal in situation.
[1913 Webster]
2. (Biol.) A deviation from the natural position of parts,
supposed to be effected in thousands of years, by the
gradual displacement of germ cells.
[1913 Webster]