There are a few different synonyms for the term "spirit lamp." Some of the most common include alcohol lamp, spirit burner, and oil lamp. These lamps are often used in laboratory settings for tasks like heating test tubes and other equipment. They're typically powered by a type of fuel called denatured alcohol or methylated spirits, which burns at a low temperature that's ideal for many scientific experiments. Alternative options for spirit lamps include gas burners and electric hotplates, but many researchers and scientists still prefer the simplicity and portability of more traditional alcohol lamps.