- wheel-house (n.)
[wheel-house 词源字典]
- also wheelhouse, 1835, "structure enclosing a large wheel," especially one over the steering wheel of a steamboat, thus "pilot house;" from wheel (n.) + house (n.). Baseball slang sense of "a hitter's power zone" attested by 1990.[wheel-house etymology, wheel-house origin, 英语词源]