2022-08-05 ศัพท์ น่าสับสน - Set – G – group

Revision G

2022-08-05

ศัพท์ น่าสับสน - Set – G – group

แนะนำการใช้ ตามที่ส่วนใหญ่ใช้ แต่ละท้องถิ่น 

ความหมาย อาจผันแปร ตาม ตำแหน่ง/หน้าที่ ในประโยค

แสดงรายละเอียด จากตำราแต่ละเล่ม ที่เป็นหัวข้อ ต่อไปนี้:

 

Dictionary.com

ออกเสียง group = “GROOP”

 

Common Error in English Usage Dictionary:

Group (PLURAL VS. SINGULAR)

When the group is being considered as a whole, 

           it can be treated as a single entity: 

                “the group was ready to go on stage.” 

But when the individuality of its members 

           is being emphasized, 

           “group” is plural: 

                  “the group were in disagreement about where to go for dinner.”

 

Dictionary.com

THE AMERICAN HERITAGE® SCIENCE DICTIONARY

SCIENTIFIC DEFINITIONS FOR GROUP

Chemistry

1. Two or more atoms that are bound together 

and act as a unit in a number of chemical compounds, 

such as a hydroxyl (OH) group.

1. In the Periodic Table, 

a vertical column that contains elements 

having the same number of electrons 

in the outermost shell of their atoms. 

Elements in the same group 

         have similar chemical properties. 

See Periodic Table.

 

Mathematics 

         A set with an operation 

               whose domain is all ordered pairs of 

               members of the set, 

               such that the operation is binary (operates on two elements) 

               and associative, the set contains the identity element 

               of the operation, and 

               each element of the set has an inverse element for the operation. 

 

The positive and negative integers

              and zero form a set that is a group 

              under the operation of ordinary addition, 

              since zero is the identity element of addition 

              and the negative of each integer is its inverse. 

 

Groups are used extensively in quantum physics 

             and chemistry to model phenomena 

             involving symmetry and invariance.

 

American Heritage® Dictionary of the English Language:

groupe, from Italian gruppo, probably of Germanic origin.]

Usage Note: 

Group as a collective noun can be followed 

             by a singular or plural verb. 

             It takes a singular verb 

                when the persons or things that make up the group 

                are considered collectively: 

               The dance group is ready for rehearsal. 

Group takes a plural verb 

            when the persons or things that constitute i 

            are considered individually: 

                  The group were divided in their sympathies. 

See Usage Note at collective noun.

 

Dictionary of Military and Associated Terms. 

US Department of Defense 2005.

group

1. A flexible administrative and tactical unit 

composed of either two or more battalions 

or two or more squadrons.

The term also applies to combat support 

        and combat service support units.

1. A number of ships and/or aircraft, 

normally a subdivision of a force, 

        assigned for a specific purpose. 

Also called GP.