smock 
/ˈsmɑ:k/ noun
plural smocks /ˈsmɑ:k/ noun [count] 1 : a light and loose long shirt usually worn over your regular clothing to protect it from getting dirty
▪ an artist's smock ▪ The children's smocks were covered with paint. —called also (Brit) overall 2 : a long shirt usually worn by women
▪ an artist's smock ▪ The children's smocks were covered with paint. —called also (Brit) overall
