'Stratigraphy' definitions:

Definition of 'stratigraphy'

(from WordNet)

noun

The branch of geology that studies the arrangement and succession of strata

Definition of 'Stratigraphy'

From: GCIDE

Stratigraphy \Stra*tig"ra*phy\, n. [Stratum + -graphy.] That branch of geology which treats of the arrangement and succession of strata. [1913 Webster]

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