We found one dictionary that defines the word all-or-none phenomenon:

Medicine (1 matching dictionary)

1. all-or-none phenomenon: Medical dictionary

▸ Words similar to all-or-none phenomenon ▸ Usage examples for all-or-none phenomenon ▸ Idioms related to all-or-none phenomenon ▸ Wikipedia articles (New!) ▸ Words that often appear near all-or-none phenomenon ▸ Rhymes of all-or-none phenomenon ▸ Invented words related to all-or-none phenomenon