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

 

histogram

 noun
noun
BrE BrE//ˈhɪstəɡræm//
 
; NAmE NAmE//ˈhɪstəɡræm//
 
(specialist)
 
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a diagram which uses rectangles (= bars) of different heights (and sometimes different widths) to show different amounts, so that they can be compared The histogram shows the distances between early settlements. This information is presented as a histogram. compare bar chart Word Origin late 19th cent.: from Greek histos ‘mast, web’ + -gram (see gram).
See the Oxford Advanced American Dictionary entry: histogram