What is this type of sci-fi mechanical device called?

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I'm trying to identify the terminology used for this type of sci-fi mechanical device. It appears to have a glowing cyan core surrounded by a heavy metallic housing with concentric rings and mechanical details. Is there a general term for this kind of object in sci-fi design or 3D modeling? I'm looking for keywords I can use to find similar 3D assets and references. Thanks! Original reference: StarCraft https://preview.redd.it/fq7eltiz1ouh1.jpg?width=931&format=pjpg&auto=webp&s=398fee8ac7e70578356294d225b68019530f277a   submitted by   /u/Low_Garlic_8668 [link]   [comments]