SINCE 1828
D-pillar
noun
D-pil·lar
| \ ˈdē-ˈpi-lər
\
\
variants:
or less commonly D-post \ ˈdē-ˈpōst
\
\
plural D-pillars
also D-posts
Definition of D-pillar
: either one of two support posts that connect a vehicle's roof to its body at the rear of a long vehicle (such as a station wagon)
The wide D-pillar creates a large blind spot for lane changes and backing out of parking spots.— Mark Phelan, Detroit Free Press, 14 Mar. 2013
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Merriam-Webster unabridged
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