1. Plural of propyne; organic compounds containing a triple bond between carbon atoms, with the general formula C₃H₄.
Usage: chemistry; technical

Examples

• Propynes are used as intermediates in organic synthesis.
• The chemist studied the reactivity of various propynes in the laboratory.
• Propynes can undergo addition reactions with halogens.
• Industrial applications of propynes include the production of specialty chemicals.