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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