Synonyms that are in the dictionary are marked in green. Synonyms that are not in the dictionary are marked in red.
Antonyms that are in the dictionary are marked in green. Antonyms that are not in the dictionary are marked in red.
Alexander Fleming discovered penicillin in 1928, less than a century ago, in St. Mary’s Hospital in London.
Source: https://www.discovermagazine.com/the-sciences/5-scientific-assumptions-that-are-surprisingly-new