translocation

1. A change of location.
2. Genetics.
   1. A transfer of a chromosomal segment to a new position, especially on a nonhomologous chromosome.
   2. A chromosomal segment that is translocated.

The rearrangement of genetic material within the same chromosome or the transfer of a segment of one chromosome to another nonhomologous one.

In soil science, the transfer of substances in solution or suspension from one horizon to another.

The attachment of a fragment of one chromosome to a nonhomologous chromosome. See also chromosomal abnormality. The translocations recorded include adjacent section, alternate segregation, centric fusion, distal segment, eye color, heterozygote, interstitial segment, reciprocal, Robertsonian.

• Robertsonian t. — that in which the breaks occur at the centromeres and entire chromosome arms are exchanged, usually involving two acrocentric chromosomes.