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- Massive compact halo object, an astronomical body that might explain the apparent presence of dark matter in galaxy halos
- Massive crystal habit, a mineralogy term for an appearance (habit) type described as shapeless, with no distinctive external crystal shape
- Massive McMuffin, a variant, sold only in New Zealand and some parts of Australia, of McDonald's Egg McMuffin breakfast sandwich
- Massive rave, a type of dance party
- Massive rock In mineralogy, massive means that the rock is homogeneous—not layered or having an obvious crystal structure, without cracks or joints.
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