block diagram

block diagram

noun
1.
a chart or diagram using labeled blocks connected by straight lines to represent the relationship of parts or phases, as the steps in a data-processing application. Compare flow chart ( def 2 ).
2.
Geology. a perspective representation of the geology of an area showing surface contours and generally including two vertical cross sections.

Origin:
1920–25

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
block diagram
 
n
1.  a diagram showing the interconnections between the parts of an industrial process
2.  a three-dimensional drawing representing a block of the earth's crust, showing geological structure
3.  computing a diagram showing the interconnections between electronic components or parts of a program

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