1. Plural of guanidine; organic compounds containing the guanidinium group, used in chemistry, pharmaceuticals, and biochemistry.
Usage: technical; chemistry

Examples

• Guanidines are important intermediates in organic synthesis.
• The pharmaceutical industry uses guanidines in the development of new drugs.
• Arginine is a naturally occurring amino acid containing a guanidine group.
• Researchers studied the reactivity of various guanidines in the laboratory.
• Guanidines have applications in materials science and polymer chemistry.