Definition of mammography noun from the Oxford Advanced Learner's Dictionary

 

mammography

 noun
noun
BrE BrE//ˈmɒɡrəfi//
 
; NAmE NAmE//ˈmɑːɡrəfi//
 
[uncountable]
 
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the use of X-rays to check for cancer in a breast Word Origin 1930s: from mamma (Old English, from Latin, ‘breast’) + -graphy.
See the Oxford Advanced American Dictionary entry: mammography