Simple Definition of missing link
: something that you do not have and that you need to complete a series or to solve a problem
the missing link : a kind of animal that was in some ways like an ape and in some ways like a human being and that is thought to have existed in the past but has not been discovered
Full Definition of missing link
1 : an absent member needed to complete a series or resolve a problem
2 a : a hypothetical intermediate evolutionary form between humans and their presumed simian progenitors b : a hypothetical intermediate evolutionary form between one animal species or group and its presumed ancestors <a missing link between reptiles and birds>
Examples of missing link
Police are hopeful that the new evidence will provide the missing links needed to solve the crime.
scientists searching for the missing link
First Known Use of missing link
Learn More about missing link
Britannica.com: Encyclopedia article about "missing link"
Seen and Heard
What made you want to look up missing link? Please tell us where you read or heard it (including the quote, if possible).