Define phase. phase synonyms, phase pronunciation, phase translation, English dictionary definition of phase. a stage in development: The toddler is just going through a phase. Not to be confused with: faze – to worry or disturb: The ghost story didn’t faze the...
Phase definition: A distinct stage of development. Origin of Phase Back-formation from New Latin phasēs phases of the moon from Greek phaseis pl. of phasis appearance from phainein to show bhā- 1 in Indo-European roots From American Heritage Dictionary of the English Language, 5th Edition From New Latin phasis, from Ancient Greek φάσις (phásis, “an appearance”), from φάειν ...