IPA: /ˌpɒlɪˈnjuːklɪə/
KK: /ˌpɒlɪˈnjuːklɪə/
Describing something that has more than one nucleus, often used in chemistry to refer to compounds with multiple cyclic structures.
The polynuclear compound exhibited unique chemical properties due to its multiple nuclei.
Polynuclear → It is formed from "poly-" (meaning many) and "nucleus" (from Latin, meaning kernel or core). The word "polynuclear" refers to something that has many nuclei or cores.
Think of 'poly-' meaning many and 'nucleus' meaning core — so polynuclear describes something with many cores.