augmentation [augmentations](medicine: the stage of a disease during which symptoms increase or continue) noun [UK: ˌɔːɡ.men.ˈteɪʃ.n̩] [US: ˌɑːɡ.men.ˈteɪʃ.n̩]
onset [onsets](medicine: initial phase of a disease or condition) noun [UK: ˈɒn.set] [US: ˈɑːn.set]