The term PART OF A WINEGLASS can be solved with the four-letter word STEM. The STEM of a wineglass is the thin, cylindrical part that connects the bowl of the glass to the base. It is usually made of metal or glass and is designed to provide stability and balance to the glass. The STEM also helps to keep the drinker's hand away from the bowl of the glass, which helps to keep the drink at the desired temperature.