Definition of "co-discoverer" [co-discoverer]

• Someone who is the first of two or more people to discover something (noun)

WordNet. Princeton University. 2010.

• "I'm applying for Radiology-Imagenology residency in my country, and as a fan of Nikola Tesla, I think it's also important to mention his name as co-discoverer of X-rays."
• "In 1979 Francis Crick, the co-discoverer of DNA, lamented the blunderbuss nature of existing technologies."
• ""This really is the first Goldilocks planet," said co-discoverer R. Paul Butler of the Carnegie Institution of Washington."