Alkynyl is a technical term used in organic chemistry to refer to a functional group consisting of a carbon-carbon triple bond attached to a hydrogen or other substituent group. Some synonyms for the word alkynyl include acetylenic, ethynyl, and triple-bonded. The term acetylenic is commonly used in chemical literature along with ethynyl to describe the properties and reactions of compounds containing an alkynyl group. Similarly, triple-bonded is a more general term applied to any chemical compound with a triple bond between two carbon atoms, which includes alkynes, nitriles, and some other functional groups. These synonyms are useful in research and scientific publications where precision in language is critical.