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schematic

skee-MA-tik /skɪˈmætɪk/

nounadjectiveC1GRESAT

technicalprofessional

A simplified, symbolic diagram showing the electrical, mechanical, or logical connections within a system, rather than its physical layout.

A schematic uses standardized symbols (like lines, resistors, or valves) to show how a system works conceptually, ignoring physical size or aesthetic appearance.

The story behind the word. Derived from the Greek 'skhematikos', from 'skhema' (form, figure, or habit). In the 19th century, as electrical and mechanical systems grew more complex, engineers needed a way to map connections without cluttering the drawing with physical details, leading to the modern symbolic schematic.

Word relationships

diagram: A diagram is any visual representation of information, while a schematic is specifically a symbolic map of a technical system.
blueprint: A blueprint shows exact physical dimensions and layouts, whereas a schematic shows logical and functional connections.

physical layout: A drawing that shows the exact physical placement and dimensions of components.

Commonly confused with

prototype: A prototype is a physical or digital model of the actual product, while a schematic is a symbolic 2D diagram.

Word family

schema (noun): A representation of a plan or theory in the form of an outline or model.
schematically (adverb): In a way that is represented in a simplified, symbolic diagram.

Collocations

electrical schematic
wiring schematic
schematic diagram
schematic design

Example sentences

"The technician consulted the electrical schematic to find which wire connected to the main fuse." A maintenance manual for an industrial HVAC system.

Memory hook

Think of a 'scheme'. A schematic is a 'scheme' or a simplified plan of how a system's parts talk to each other. Schematics map the connections.

When not to use

Do not use to describe a detailed 3D CAD model or a realistic drawing that shows the actual physical shape and dimensions of a product.

Fun facts

The iconic London Underground tube map, designed by Harry Beck in 1931, is actually a schematic, not a geographic map, because it prioritizes connections over physical distance.