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).
Geology. a perspective representation of the geology of an area showing surface contours and generally including two vertical cross sections.
Dork, Dweeb, Nerd, And Geek: Which One Are You?There’s a lot of overlap in meanings. Yet, some of these terms have grown up a little more than others and even wriggled away from their negative connotations. In fact, there appears to be a hierarchy to these terms now.
Origin of block diagram
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for block diagram
a diagram showing the interconnections between the parts of an industrial process
a three-dimensional drawing representing a block of the earth's crust, showing geological structure
computing a diagram showing the interconnections between electronic components or parts of a program
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