"Unciferous" is a rare adjective that is derived from the Latin word "uncifer," meaning "to bring to light." The word is pronounced as /ʌnˈsɪfərəs/ (un-SIF-er-us), and it refers to something that bears or yields light. The spelling of the word follows the English language's conventions, where the "c" is pronounced as /s/ when followed by "e" or "i." While "unciferous" is not commonly used, it highlights the importance of using accurate and precise language to convey unique concepts.