What is the prefix for dairy?

There isn't a specific prefix for "dairy" in the same way there are prefixes for words like "biology" (bio-) or "geology" (geo-).

However, you might see "lacto-" used as a prefix related to milk or dairy products. This comes from the Latin word "lac," meaning milk.

For example:

* Lactose: The sugar found in milk

* Lactobacillus: A type of bacteria used in yogurt production

So, while there isn't a direct prefix for "dairy," "lacto-" is often used in related terms.