Definitions

1. noun

A hypothetical chemical compound that can stimulate the production of melanin or cause it to darken, often used as a speculative concept in science fiction.

“The scientist theorized that a filmogen could potentially be created to treat age-related skin conditions.”

2. verb

To darken or produce melanin in something, often used figuratively.

“The pollution in the city began to filmogen the once-pristine river.”