Can I include a link for the definition of a specific word in the questionnaire?

Question

I would like to link some words in order to provide a definition for them as they are pretty specific terminologies that may need to be clarified in order for the submitting party to get the question right.

Answer 1

I would actually recommend a "hover" instead a pop-up:

Click to Show Information (hover or pop-up)
HTML Code (see tag) (traditional hyperlink)

In short: Write this in your questionnaire:

This is a ((term|In analogy to natural language, where a noun phrase refers to an object and a whole sentence refers to a fact, in mathematical logic, a term denotes a mathematical object and a formula denotes a mathematical fact.)) that needs a definition.