Noun
wing collar (plural wing collars)
A small standing collar with the points pressed to stick out, resembling "wings", used in shirts intended to be worn with men's evening dress.
Although some style authorities consider the wing collar to be an acceptable option for black tie shirts, they should not be worn with double cuffs or a pleated bib, citation and are better suited to the more formal single-breasted peak lapel jacket. Source: Internet
Debrett's do not endorse the wing collar as being compatible with the black tie dress code. Source: Internet
It was later taken over by the King's School in 1936 *Full Canterbury Dress: The name given to the school uniform, which consists of white shirt with wing collar, pinstripe trousers, black jacket, black socks, black tie and black shoes for the boys. Source: Internet
In the early-20th century, a piqué shirt with a detachable wing collar and single cuffs such as is worn with white tie was used, and in the 1960s and 1970s ruffled bibs were popular, but neither style is often seen today. Source: Internet
However, many style authorities argue that the wing collar should remain the domain of white tie for aesthetic reasons. Source: Internet
The wing collar originally disappeared in black tie after the 1920s when the appropriately semi-formal attached turndown collar shirt became preferred, but it has been popular with American men in a less substantial, attached form since the 1980s. Source: Internet