Monday 17 February 2020

definitions


PARK COLLEGE OF ENGINEERING AND TECHNOLOGY
DEPARTMENT OF ENGLISH
HS 8251 TECHNICAL ENGLISH
DEFINITIONS
1. What is it?
A definition is a statement that says what something is.
A definition is the explanation of a word.
A good definition should be precise, accurate and it should identify the item you are defining beyond any doubt.
Definitions of terms are the foundations of technical writing.
2. Types of definitions  
            1. Informal definitions
            2. Formal definitions (single sentence definition)
            3. Extended definitions
3. A. Informal definitions:
A definition placed between commas or parentheses is usually known as informal definition. It is also termed as parenthetical definition.
Examples:
1. Every batter hops for a grand slam (four runs from one swing of a bat)
2. The viscosity (thickness) of the syrup made it difficult to pour.
3. On an average day, he was able to cut a card ( 128 cubic feet) of wood.
Characteristics:
            -Low level need
            -Low level of importance
            -Brief- a word or a phrase
3. B. Formal definitions:
            A formal definition consists of three parts:
                        1. The term to be defined
                        2. The class, group or concept to which the term belongs
3. The unique characteristics that distinguish it from all others of its class/functions or uses/ specific details
                        TERM                        >          CLASS           >          CHARACTERISTICS
Example1:
A resistor (term) is an electronic device (class) that is used in electronic circuits to oppose and control current flow (characteristics)
Example2:
A conductor (term) is a device or material (class) that readily carries electricity, heat or sound (characteristics


More examples:
            1. Define: solar cell
A solar cell is a device which converts the energy of sunlight into electrical energy.
            2. Define: camera
                        A camera is an instrument that is used for taking photographs.
            3. Define: endoscope
                        An endoscope is an instrument that doctors use to look inside the body.
            4. Define: star
                        A star is a celestial body which appears as a luminous point in the night sky.
From the above definitions a formula for definition (formal)- writing can be arrived;
                                                A+B+C = D
                        Where              A is the term defined
                                                B is the class to which the term belongs
                                                C is the special characteristic (or) use of the term and
                                                D is the definition
Some more examples of a formal definition (single sentence definition)
            1. Hammer
                        A hammer is a tool which is used for breaking or driving nails into a surface.
            2. Gold
                        Gold is a bright yellow metal that is used in making jewels. (Or)
                        Gold is a bright yellow metal that dissolves in no acid but aqua regia.
            3. Brake
                        Brake is a mechanical device that is used to stop running vehicles.
            4. Planet
                        A planet is a body in space that goes round a star.
            5. Square
A square is a geometric diagram which has four sides and angles of equal measurement.
            6. Catalyst
A catalyst is a substance that makes a chemical reaction happen happen faster without being changed.
            7. Lubricant
                        Lubricant is an oily substance that allows machines to run smoothly.
            8. Microscope
                        A microscope is an instrument which makes very small things appears bigger.
            9. Flow chart
A flow chart is a diagram which shows the sequence of steps in a programme for solving a problem on a computer
.
            10. Printer
                        A printer is a device which can make copies of information from a computer.
            11. Computer
A computer is a machine which can accept and process data and give an output of the result
                        Note:
                        1. A formal definition is usually written in a single sentence.
                        2. A formal definition is otherwise known as a simple definition
                        3. A simple definition is written in a single sentence.
4. If the definition exceeds more than a sentence, it becomes an extended       definition
5. One final point to remember in writing a formal/simple/sentence definition is to avoid using the term, or any variations of the term, in the remainder of the definition.
WRONG:
A resistor is an electronic device that resists current flow.
In the above example, find a synonym for resist, such as oppose or control.
RIGHT:
A resistor is an electronic device that opposes current flow.
Sentence definition: (few more points)
-          Higher level need
-          Relatively important
-          A full grammatical sentence
-          Follows the pattern: term>class>characteristics
3. C .Extended definition:
-An extended definition includes sentence definition followed by detailed presentation of additional information relevant to the situation.  It can be paragraph or more than  one paragraph.
-When a term needs to be explained in great detail and precision, an extended definition is used. It can range in size from a few sentences to many pages.
 -Extended definition provides more information besides talking about the category and the use or function. It also provides information on what it is made up of, its structure, its peculiar physical and chemical properties, when, where and by whom it is used and its merits and drawbacks.
-Some objects or concepts require more than a one-sentence definition. An extended definition might require a paragraph or even several pages to fully define a complex concept or object.
Extended definition: key aspects
-          More than a dictionary definition
-          An in-depth explanation of an idea
-          A definition that includes examples and comparisons
-          More than a description
-          More like a complete picture of something
An extended definition includes a formal (sentence) definition + one or more of the following:
-          Etymology ( origin & history
-          History and background
-          Negation
-          Operating principle
-          Visuals
-          Comparison and contrast
-          Requires materials or conditions
-          Examples
Extended definition: Examples
            1. Machine
A machine is an apparatus using or applying mechanical power, having several parts, each with a definite function and together performing certain kinds of work.
It is an instrument that transmits a force or directs its application. It is a controlling system of an organization,
            2. Group discussion
A group discussion is a situation in which a small number of persons meet face to face and involve them in free oral interaction, exchanging information on some important topic. It is also meant to arrive at a decision or reach consensus or solve a problem. The number of participants should be at least five to ensure the diversity of views.
            3. Cell phone
                        A cell phone or a cellular phone is a telephone that does not have wires. It works                           by radio. One can carry it anywhere and use it. It is also known as mobile phone.
                        It has several features.

ASSIGNMENT:
1. Give sentence definition for the following:
            01. Petroleum 02. Solar cell   03. Endoscope            04. Transformer          05. Planet
            06. Ammeter   07. Coolant     08. Laboratory            09 Water heater          10. Robot
            11. Astronomy12. Circle         13. Conductor 14. M
obile phone      15. Laptop

2. Write an extended definition for the following:
            01. Group work           02. Global warming    03.green house            04.printer                                                                    

                                   

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