It's possible that:
* It's a misspelling: Perhaps you meant a similar-sounding word like "folia" (Latin for "leaves"), "follicle", or "folic acid".
* It's a technical term: "Folica" might be a term used in a specific field or niche, such as biology or medicine.
* It's a made-up word: The word could be a made-up word for a fictional concept or product.
Please provide more context or information about where you encountered this word so I can help you determine its meaning.