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pyrosphere

noun
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py·​ro·​sphere | \ -ˌsfi(ə)r \

Definition of pyrosphere

1 : the hot central portion of the earth
2 : a hypothetical spherical zone of molten magma that is held to intervene between the crust of the earth and a solid nucleus and to supply lava to volcanoes

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History and Etymology for pyrosphere

International Scientific Vocabulary pyr- + sphere

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Dictionary Entries Near pyrosphere

pyrosome

pyrosphere

pyrostat

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Statistics for pyrosphere

Cite this Entry

“Pyrosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrosphere. Accessed 14 Aug. 2022.

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