shield volcano


noun

a broad volcano built up from the repeated nonexplosive eruption of basalt to form a low dome or shield, usually having a large caldera at the summit

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“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.
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Scientific definitions for shield volcano

shield volcano

See under volcano.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.