* Noun: When referring to the middle value in a set of data, "median" is a noun.
* Example: "The median income in this city is $50,000."
* Adjective: When describing something as being in the middle, "median" is an adjective.
* Example: "The median strip divides the highway."
* Verb: Although less common, "median" can sometimes be used as a verb meaning "to find the median of".
* Example: "Let's median these numbers to find the average."
So, without more context, it's hard to definitively say what part of speech "median" is.