IPA: //ˌaɪsəˈkroʊmoʊm//
KK: /ˈaɪsəˌkroʊmoʊm/
A type of chromosome that has two identical arms because one arm has been lost and replaced by a copy of the other arm.
The presence of an isochromosome can lead to genetic disorders.
Isochromosome → It is formed from "iso-" (from Greek "isos", meaning equal) and "chromosome" (from Greek "chroma", meaning color, and "soma", meaning body). The word describes a chromosome that has identical arms, hence the term equal body of color.
Think of 'equal' ('iso-') parts of a 'body' ('soma') that are the same color ('chroma') — that's what an isochromosome is.