Possible Interpretations:
* Combination of "uni" and "arch": This could suggest something unique, singular, or relating to an arch, such as a unique architectural feature or a single, dominating arch.
* Shortened form of a longer word: It might be a shortened version of a more complex word, like "unitarist" or "unilateralist."
* Technical term: It could be a technical term in a specific field like architecture, engineering, or computer science.
To understand the meaning, you need more context:
* Where did you encounter this word? (a book, article, website, conversation)
* What was the surrounding text? (This could provide clues about its meaning.)
Please provide more context so I can help you decipher the meaning of "uniarch."