Definition of alternating:
oscillating (part of speech: verb)
- substituting (part of speech: verb)
- "Hertzian Wave Wireless Telegraphy", John Ambrose Fleming.
- "Christopher Columbus, Complete", Filson Young.
Desperately obliterating all expression from his face, and hoping that his eyes were not anxious, Nick took from his pocket a gold bag whose diamonds, alternating with sapphires, sparkled as the sunshine struck them.- "The Port of Adventure", Charles Norris Williamson and Alice Muriel Williamson.