Technical Communication - Definition of Technical Terms
Writing Definitions
A formal definition is based upon a concise, logical pattern that includes as much information as it can within a minimum amount of space. The primary reason to include definitions in your writing is to avoid misunderstanding with your audience. A formal definition consists of three parts:
1. The term (word or phrase) to be defined
2. The class of object or concept to which the term belongs
3. The differentiating characteristics that distinguish it from all others of its class For example:
• Water (term) is a liquid (class) made up of molecules of hydrogen and oxygen in the ratio of 2 to 1 (differentiating characteristics).
• Comic books (term) are sequential and narrative publications (class) consisting of illustrations, captions, dialogue balloons, and often focus on super-powered heroes (differentiating characteristics).
• Astronomy (term) is a branch of scientific study (class) primarily concerned with celestial objects inside and outside of the earth's atmosphere (differentiating characteristics).
Language Focus: Writing Definitions
Main clause + Subordinate relative clause
A thermometer is a medical device + that is used to measure temperature.
Activity: Match the main clause in column A with the subordinate clause in column B to write a definition. Practice the structure of definitions.
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