Definitions

1. proper noun

a Scottish island in the Inner Hebrides, famous for its association with Robert Louis Stevenson’s novel ‘The Strange Case of Dr. Jekyll and Mr. Hyde’.

“The island of Jekyll is a popular tourist destination in Scotland.”

2. noun

a person with a dual personality, typically having a good and an evil side.

“The detective suspected that the serial killer was actually a Jekyll with a split personality.”

3. noun

a mixture of two liquids or substances that do not normally mix, especially oil and water.

“The scientist mixed two liquids to create a Jekyll, which separated into distinct layers.”

4. verb

to separate or mix two substances in such a way that they do not normally mix.

“The engineer tried to Jekyll the mixture, but it still refused to separate.”