Multinuclear is a term that refers to an object or system that has multiple nuclei. Some synonyms for this word include polynuclear, many-nucleated, and polykaryotic. These terms are commonly used in biology and chemistry, where they describe structures with more than one nucleus. In addition to these scientific terms, there are also several everyday language synonyms for multinuclear. These include multi-core, multi-processor, and multi-threaded. These terms are used to describe computer systems and other electronic devices that have multiple processing units. Whatever context it is used in, the term multinuclear refers to something that is complex and multi-faceted, with many different parts working together to achieve a common goal.