A "cotter" is a small metal pin or wedge used to keep two pieces of machinery or equipment together, preventing them from coming apart. Full definition
«McWillie Chambers: Paintings» and «Eric Rhein: In the Company of Shadows» Tricia Collins Grand Salon 1/4 -1 / 25/1997 (Reviews by Holland Cotter in NYTimes, Bill Sullivan in Cover) 1997 (bard.edu)
Following a screening of the documentary Monir (2014), the film's subject, artist Monir Shahroudy Farmanfarmaian, is joined by artist Frank Stella and curator Suzanne Cotter for a reflection on Monir's practice, attitudes toward abstraction, and the artistic centers of Tehran and New York in the 1960s and 1970s. (arthaps.com)
Now one has,» wrote Holland Cotter in a New York Times review of «Art AIDS America» at the Bronx Museum of the Arts. (chicago.suntimes.com)