We found one dictionary that defines the word no observable effect:

Medicine (1 matching dictionary)

1. no observable effect: Medical dictionary

▸ Words similar to no observable effect ▸ Usage examples for no observable effect ▸ Idioms related to no observable effect ▸ Wikipedia articles (New!) ▸ Words that often appear near no observable effect ▸ Rhymes of no observable effect ▸ Invented words related to no observable effect