Definitions

1. adjective

Relating to or denoting a gene or genetic element that is maintained or transmitted by a virus and is not integrated into the host cell’s genome.

“The episomal plasmid was used to study gene expression in the bacteria.”

2. noun

A genetic element, such as a plasmid or provirus, that is maintained or transmitted by a virus and is not integrated into the host cell’s genome.

“The episomes were isolated from the infected cells.”