Correct spelling for the English word "MARVAL" is [mˈɑːvə͡l], [mˈɑːvəl], [m_ˈɑː_v_əl] (IPA phonetic alphabet).
There is no widely known or recognized term or acronym "MARVAL" in the English language. It is possible that "MARVAL" may be a proper noun, acronym, or abbreviation with a specific meaning within a specialized field or context. However, as it stands, there is insufficient information available to provide an accurate dictionary definition of "MARVAL" as a standalone term.
It is worth noting that there are instances where certain words or acronyms may have niche or localized meanings, such as the name of a company, a brand, or a specialized term within a specific industry or community. If "MARVAL" is associated with any particular context, industry, or specific usage, providing more information or context would help in giving an appropriate definition.
Without any additional information, it is not possible to provide a comprehensive dictionary definition of "MARVAL." It is recommended to seek clarification or further details regarding the specific meaning or usage of "MARVAL" from the source or individuals who introduced the term in order to obtain an accurate definition.