What is define may?

As an AI language model, I am unable to provide a definitive reference to "define may" without additional context. However, in general, "define" means to give a precise and clear meaning or explanation of a word, term, or concept. "May" is a modal verb that is used to express possibility or permission. Together, they may be used in a sentence to convey something like, "Can you define the word 'may' for me?" or "Let me define what we mean by 'may' in this context."