cupola
(military, railroad) A small turret, usually on a hatch of an armoured fighting vehicle.
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(military, railroad) A small turret, usually on a hatch of an armoured fighting vehicle.
The cupola has a small cylindrical chimney-like bore that is lined with a refractory material.
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(architecture) A dome-shaped ornamental structure located on top of a larger roof or dome.
the light falling dimly through the foggy cupola.
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(geology) An upward-projecting mass of plutonic rock extending from a larger batholith.
Cast iron produced in a cupola possesses the following advantages : The cost of melting is low. The control of chemical composition is better. Temperature control is easier. Molten metals can be tapped from the cupola at regular intervals.
“Just counting up how many parts went into making the RFM Panzer 4 cupola. 58 pieces! However feel quite chuffed that I’ve managed to get everything in and it fits onto the turret as well. #histcalemodels #scalemodels”
— Bluesky· May 2026
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