propeller-head
noun
Definitions
The hub of a propeller
The central part of a propeller, into which the blades fit
A person deeply absorbed in an academic field or technical interest, especially to the exclusion of social activities.
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Definitions
The hub of a propeller
The central part of a propeller, into which the blades fit
A person deeply absorbed in an academic field or technical interest, especially to the exclusion of social activities.