ethinyl
/ˈɛθɪnɪl/
noun
- A chemical group derived from ethyne (acetylene), used especially in the names of synthetic hormones and drugs.
- Ethinyl estradiol is a common ingredient in many birth control pills.
- Some steroids contain an ethinyl group that makes them more stable in the body.
- The chemist studied the properties of the ethinyl group in organic compounds.