extrachromosomal

[ ek-struh-kroh-muh-soh-muh l ]
/ ˌɛk strəˌkroʊ məˈsoʊ məl /

adjective Genetics.

of or relating to DNA that exists outside the main chromosome and acts independently.

Origin of extrachromosomal

First recorded in 1935–40; extra- + chromosomal

Words nearby extrachromosomal

extracellular , extracellular enzyme, extracellular fluid, extracellular matrix, extracellular toxin, extrachromosomal, extrachromosomal element, extrachromosomal inheritance, extracode, extraconstitutional, extracorporeal