SCIENCELAB refers to a science laboratory, which is a special facility equipped with tools, equipment, and resources for conducting scientific experiments and research. In the context of the clue, it is the setting in which high school students conduct experiments and other scientific activities as part of their coursework.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Place for student mixers?. Explanations are generated by AI and may be inaccurate.