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[struh-tig-ruh-fee] /strəˈtɪg rə fi/
a branch of geology dealing with the classification, nomenclature, correlation, and interpretation of stratified rocks.
Origin of stratigraphy
1860-65; strati- + -graphy
Related forms
stratigrapher, stratigraphist, noun
[strat-i-graf-ik] /ˌstræt ɪˈgræf ɪk/ (Show IPA),
stratigraphical, adjective
stratigraphically, adverb Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for stratigraphy
  • Each new occupant of the den contributes to the stratigraphy, and the stinky structure outlasts them all.
  • As a result, none of the early finds can be placed exactly in the local stratigraphy.
  • Branch of stratigraphy dealing with the study of units of rock.
British Dictionary definitions for stratigraphy


the study of the composition, relative positions, etc, of rock strata in order to determine their geological history stratig
(archaeol) a vertical section through the earth showing the relative positions of the human artefacts and therefore the chronology of successive levels of occupation
Derived Forms
stratigrapher (strəˈtɪɡrəfə), stratigraphist (strəˈtɪɡrəfɪst) noun
stratigraphic (ˌstrætɪˈɡræfɪk), stratigraphical, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for stratigraphy

1865, from Latin strati-, comb. form of stratum (see stratum) + -graphy.

Online Etymology Dictionary, © 2010 Douglas Harper
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stratigraphy in Medicine

stratigraphy stra·tig·ra·phy (strə-tĭg'rə-fē)
See tomography.

strat'i·graph'ic (strāt'ĭ-grāf'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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stratigraphy in Science
The scientific study of rock strata, especially the distribution, deposition, correlation, and age of sedimentary rocks.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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