Word Study
barysphere
CIDE DICTIONARY
barysphere, n. [Gr. bary`s heavy + sphere.].
The heavy interior portion of the earth, within the lithosphere. [Webster 1913 Suppl.]
OXFORD DICTIONARY
barysphere, n. the dense interior of the earth, including the mantle and core, enclosed by the lithosphere.
Etymology
Gk barus heavy + sphaira sphere
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