Definitions

1. noun

A person who studies the changes in gene expression that occur without a change in the DNA sequence, often as a result of environmental factors.

“As a biologist, she was an expert epigenist, researching the impact of nutrition on gene expression.”

2. noun

An individual who believes that gene expression is influenced by external factors such as environment and lifestyle, as opposed to genetics.

“The epigenist in the group argued that the development of the disease could be linked to the patient’s diet and stress levels.”