What are words with the prefix plus intra?

You're asking for words with the prefix "plus intra". It seems you might be mixing up prefixes. There is no prefix "plus intra".

Here's the breakdown:

* "Plus" is not a prefix. It's a word meaning "added to" or "in addition to".

* "Intra-" is a prefix meaning "within" or "inside".

Examples of words with the prefix "intra-":

* Intravenous: Within a vein

* Intramuscular: Within a muscle

* Intracellular: Within a cell

* Intranasal: Within the nose

* Intralingual: Within a language

If you have a specific word in mind that starts with "plus intra", please clarify, and I can help you further.