pyrosphere

noun

py·​ro·​sphere

-ˌsfi(ə)r

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

Word History

Etymology

International Scientific Vocabulary pyr- + sphere

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Rhymes for pyrosphere

• atmosphere
• biosphere
• centromere
• chemosphere
• chromosphere
• hemisphere
• hydrosphere
• lithosphere
• mesosphere
• microsphere
• miserere
• mountaineer