retractable dome
- noun
- The retractable dome is open.
Examples
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The new arena’s retractable dome is operated by a state-of-the-art mechanical system.
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The stadium installed a retractable dome to allow for both indoor and outdoor events.
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During heavy rain, the retractable dome was closed to keep spectators dry.
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Look at the retractable dome!
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The stadium features a retractable dome that opens to let in sunlight during the day.
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During the summer, the retractable dome was opened, allowing fans to enjoy the fresh air.
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The architect designed a modern building with a stunning retractable dome that enhances natural lighting.
Synonyms
A round roof on top of a building that holds a telescope for looking at the sky or surrounding area
Surface Forms
Morphology
The meaning is directly compositional: 'retractable' (able to be pulled in or withdrawn) modifies 'dome' so a B1 learner who knows both words can infer a dome that can be opened, closed, or pulled back. This adjective+noun combination follows a common and cross-linguistically transparent pattern, so the overall sense is immediately derivable from the parts.
Etymology
Retractable dome uses retractable (meaning 'able to be pulled back') and dome (a round roof), so picture a big round roof that can slide away like a car sunroof. That's why it means a dome that can be 'opened' or 'closed' by a machine.