Colocynth is a bitter fruit that has been used for medicinal purposes for centuries. There are a few other names for this fruit that are commonly used as synonyms. One such name is the bitter apple, which refers to the fact that the fruit is extremely bitter and has a green apple-like appearance. Another common synonym is the desert gourd, which refers to the fact that the colocynth grows in desert-like conditions. Additionally, it is sometimes called the vine of Sodom, which is a reference to its use as a laxative in biblical times. While these names may be different, they all refer to the same plant with useful medicinal properties.