spock
n. countablen. a person who acts only with logic and does not show any emotion. It comes from a famous character in the Star Trek movies and TV shows.
n. a person perceived as being exceptionally logical, analytical, and devoid of emotion. Derived from the fictional character in the Star Trek franchise; often used as a metaphor for cold rationality.
Don't be such a Spock; try to understand how she feels.
The lead engineer was a total Spock, focusing entirely on the data while ignoring the team's low morale.
In political commentary, the candidate was often criticized for being a Spock, as his reliance on statistical evidence failed to resonate with the emotional concerns of the electorate.
Often used as a proper noun or in the construction 'a total Spock' to describe a personality type.