What name for a premolar tooth comes from Latin for "two points"?

A precocious red-haired girl is the heroine of which 1908 children's book by Lucy Maud Montgomery? Mohammad Ayub Khan was president of which country from 1958 to 1969? Billy Crystal plays a pregnant man in which 1978 film directed by Joan Rivers? A pregnant Demi Moore saves the world from the apocalypse in which 1988 film? Which president gave a nearly two-hour inaugural address in the cold in 1841 and died a month later? A presidential order got which woman released from prison on February 1, 1979? A primitive 3-D color version of which medium was demonstrated by John Logie Baird in 1941? A prism refracts white light into the spectrum on the cover of which 1973 album?