eyebrow window
n.— «Furzemoor Cottage is a pretty home with a wired thatch roof (extensively re-thatched in 2003) with wide eyebrow windows.» —“Chocolate-box pretty for Easter” Henley Standard (United Kingdom) Apr. 14, 2009. (source: Double-Tongued Dictionary)
Further reading
How do you pronounce species? Is it “spee-SEES” or “spee-SHEES”? Both are considered standard, but the spee-SHEES pronunciation is far more common. This is part of a complete episode.
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“eyebrow window” also refers to a particular window above the main side cockpit windows on particular airliners – the MD-80 family (including the old DC-9) and the early Boeing 737s. They were originally intended for better forward vision for pilots during a turn, but now serve no useful purpose, and newer models of the planes do not have them.