robertsonian

Robertsonian is a term with multiple meanings, referring to several concepts across various fields.

In genetics, Robertsonian translocations refer to a type of chromosomal abnormality that occurs when two acrocentric chromosomes fuse at their centromeres, resulting in a single, larger chromosome. This type of translocation is relatively common in humans, affecting about 0.1% of the population. Children with Robertsonian translocations often have an increased risk of miscarriage, genetic disorders, and fertility issues.

In the context of astrophysics, a Robertsonian model describes a type of binary stellar evolution where two stars orbit each other in opposite directions, a phenomenon observed in some binary systems. This model was proposed by philanthropist and astronomer Howard Robertson in 1927. The Robertsonian model is used to explain the behavior of certain binary systems, particularly those involving white dwarf and neutron star binaries.

In eponymy, Robertson can refer to Harper Goff Robertson, a British-American engineer and inventor who worked on the development of the Pan Am's Clipper fleet in the 1930s. However, this is a less common usage of the term.

Other meanings of the term "Robertsonian" relate to Scottish clans and surnames, as well as institutions and places named after notable individuals with the name Robertson.