อังกฤษ

decomposition

gb/dˌikəmpoʊzˈɪʃən/ us/dˌikəmpoʊzˈɪʃən/
B2 อังกฤษ
ความหมาย
0 ความหมาย
คำนาม B2 process
1

natural breakdown of organic matter

the process of rotting and breaking down naturally

รูปแบบการใช้: decomposition of [organic material]
ข้อผิดพลาดที่พบบ่อย:
Often confused with decomposition meaning “analysis” or “breaking a problem into parts.”
คำพ้องความหมาย
decay (More general and common; less scientific.) | rotting (More informal and vivid.)
คำตรงข้าม
preservation (Keeping something from decaying.)
คำที่ใช้ร่วมกัน
organic decomposition |natural decomposition |rapid decomposition |slow decomposition |the decomposition of leaves |the decomposition of wood |the decomposition of waste |decomposition in soil |decomposition in water |decomposition occurs
หัวข้อ
nature |science |environment
ตัวอย่าง
  • Decomposition of fallen leaves returns nutrients to the soil.
  • Warm, wet conditions speed up decomposition.
  • In a compost bin, decomposition happens faster when the pile is turned regularly.
ตัวอย่างสำหรับผู้เรียน
  • Food decomposition can smell bad.
  • Leaves decompose in the ground.
คำนาม formal C1 state
2

being partly or fully decayed

the condition of being rotten or decayed

รูปแบบการใช้: in (a) decomposition; in a state of decomposition
ข้อผิดพลาดที่พบบ่อย:
Learners may use decomposition as a countable noun (*a decomposition*) in this sense; it is usually uncountable.
คำพ้องความหมาย
decay (Broader; not as specific to post-death contexts.) | putrefaction (More technical and strongly associated with dead tissue.)
คำตรงข้าม
freshness (The opposite condition of not being decayed.)
คำที่ใช้ร่วมกัน
advanced decomposition |visible decomposition |signs of decomposition |stages of decomposition |a state of decomposition |the body showed decomposition |early decomposition |severe decomposition |postmortem decomposition |odor of decomposition
หัวข้อ
health |crime |science
ตัวอย่าง
  • The remains were found in an advanced state of decomposition.
  • Because of the heat, decomposition was already noticeable after a few days.
  • The report described the extent of decomposition at the scene.
ตัวอย่างสำหรับผู้เรียน
  • The meat was in decomposition.
  • The body was in a state of decomposition.
คำนาม C1 process
3

breaking something into smaller parts

dividing something difficult into smaller parts to study it

รูปแบบการใช้: decomposition of [a problem/task/system] (into [parts])
ข้อผิดพลาดที่พบบ่อย:
Not used for physical damage; for physical breaking, learners often want “breakage” or “damage.”
คำพ้องความหมาย
breakdown (More common and less formal; can also mean a failure.) | analysis (Focuses on studying something, not necessarily splitting it into parts.)
คำตรงข้าม
synthesis (Combining parts to form a whole.)
คำที่ใช้ร่วมกัน
problem decomposition |task decomposition |decomposition into parts |decomposition into steps |logical decomposition |step-by-step decomposition |decomposition of an argument |decomposition of a process |functional decomposition |decomposition approach
หัวข้อ
education |work |problem_solving
ตัวอย่าง
  • A clear decomposition of the problem helped the team find a solution.
  • The course teaches decomposition: turning a big task into smaller, manageable steps.
  • Her essay begins with a careful decomposition of the author’s argument.
ตัวอย่างสำหรับผู้เรียน
  • We used decomposition to solve the problem.
  • Break the task down with decomposition.
คำนาม technical C1 process
4

chemical breakdown into simpler substances

a reaction where one chemical becomes simpler chemicals

รูปแบบการใช้: decomposition of [a compound] (into [products])
ข้อผิดพลาดที่พบบ่อย:
In chemistry, decomposition is a type of reaction, not just “rotting.”
คำพ้องความหมาย
breakdown (More general; can describe chemical change without naming the reaction type.)
คำตรงข้าม
synthesis (A reaction where simpler substances combine to form a compound.)
คำที่ใช้ร่วมกัน
chemical decomposition |thermal decomposition |photochemical decomposition |decomposition reaction |decomposition products |decomposition temperature |catalytic decomposition |decomposition pathway |decomposition occurs |undergo decomposition
หัวข้อ
science |chemistry |education
ตัวอย่าง
  • At high temperatures, the compound undergoes decomposition into simpler gases.
  • The lab measured the decomposition products released during heating.
  • Light can cause the decomposition of some unstable chemicals.
ตัวอย่างสำหรับผู้เรียน
  • Heat caused decomposition of the chemical.
  • The reaction was a decomposition.
คำนาม technical C1 abstract
5

representing something as component parts

writing a number or matrix as simpler parts

รูปแบบการใช้: decomposition of [a number/matrix] (into [components])
ข้อผิดพลาดที่พบบ่อย:
Often confused with “composition” in math (building a function), which is a different idea.
คำพ้องความหมาย
factorization (Common for numbers/polynomials; one specific type of decomposition.) | expansion (General term for rewriting in a sum/series; not always a decomposition.)
คำตรงข้าม
composition (Combining simpler mappings or parts to build a more complex object.)
คำที่ใช้ร่วมกัน
prime decomposition |matrix decomposition |factor decomposition |spectral decomposition |decomposition into factors |decomposition into eigenvalues |decomposition theorem |a decomposition method |unique decomposition |orthogonal decomposition
หัวข้อ
math |education |technology
ตัวอย่าง
  • Prime decomposition expresses a number as a product of primes.
  • The algorithm relies on a matrix decomposition to speed up computation.
  • Students practiced decomposition to rewrite fractions in simpler forms.
ตัวอย่างสำหรับผู้เรียน
  • We used decomposition to factor the number.
  • The matrix decomposition helped the calculation.
คำนาม technical C1 process
6

dividing a system into modules

splitting a system into smaller parts to build it

รูปแบบการใช้: decomposition of [a system/project] into [modules/components]
ข้อผิดพลาดที่พบบ่อย:
In project management, “decomposition” is not the same as “deadline breakdown”; it means dividing the work into parts.
คำพ้องความหมาย
modularization (Emphasizes designing as modules; common in software.) | partitioning (More general; can be used in systems, data, or networks.)
คำตรงข้าม
integration (Putting separate parts together into a unified system.)
คำที่ใช้ร่วมกัน
functional decomposition |system decomposition |module decomposition |architectural decomposition |decomposition into components |decomposition into services |top-down decomposition |design decomposition |decomposition strategy |decomposition diagram
หัวข้อ
technology |engineering |business
ตัวอย่าง
  • The team used decomposition to split the application into independent services.
  • Good decomposition makes complex projects easier to manage.
  • The design document includes a decomposition of the system into core modules.
ตัวอย่างสำหรับผู้เรียน
  • We did decomposition to plan the project.
  • Decomposition helped us build the system.
ไวยากรณ์
รูปคำในพจนานุกรม
decomposition
IPA
GB/dˌikəmpoʊzˈɪʃən/
US/dˌikəmpoʊzˈɪʃən/
พยางค์และการเน้นเสียง
de - com - pos - i - tion (5 พยางค์)
Stress on 4th syllable (i)
รูปคำ
Noun
  • Base: decomposition
  • Plural: decomposition, decompositions
กลุ่มคำที่เกี่ยวข้อง
Forms
decompositions noun
Core family
decompose verb B2 compose verb B1 composition noun B1
Related words
composer noun B2 decomposer noun
Advanced or less common
decomposable adjective
วลีและสำนวน

advanced state of decomposition

1
/ədvˈænst stˈeɪt əv dˌikəmpoʊzˈɪʃən/
fixed phrase formal

very far along in decay

very decayed

ตัวอย่าง
  • The remains were in an advanced state of decomposition.
  • Because of the temperature, the animal carcass reached an advanced state of decomposition quickly.
  • Investigators could not identify the body due to the advanced state of decomposition.

decomposition reaction

1
/dˌikəmpoʊzˈɪʃən ɹiˈækʃən/
fixed phrase technical

one compound splits into substances

a reaction where one chemical becomes two or more chemicals

ตัวอย่าง
  • The teacher gave an example of a decomposition reaction in which a compound breaks apart when heated.
  • Electrolysis can drive a decomposition reaction.
  • They identified the products of the decomposition reaction using spectroscopy.

functional decomposition

1
/fˈʌŋkʃənəl dˌikəmpoʊzˈɪʃən/
fixed phrase technical

splitting work into smaller functions

dividing a system into smaller jobs it does

ตัวอย่าง
  • Functional decomposition helped the team define clear responsibilities for each module.
  • The report includes a functional decomposition of the manufacturing process.
  • They started with functional decomposition before choosing the system architecture.

in a state of decomposition

1
/ˈɪn ə stˈeɪt əv dˌikəmpoʊzˈɪʃən/
fixed phrase formal

already decaying or rotting

already rotting

ตัวอย่าง
  • The body was in a state of decomposition when it was discovered.
  • After several days in the heat, the fish were in a state of decomposition.
  • The report noted that the remains were in a state of decomposition.

matrix decomposition

1
/mˈeɪtɹɪks dˌikəmpoʊzˈɪʃən/
fixed phrase technical

splitting a matrix into factors

rewriting a matrix using simpler matrices

ตัวอย่าง
  • The solver uses matrix decomposition to compute the solution efficiently.
  • QR is one common type of matrix decomposition.
  • They compared different matrix decomposition methods for numerical stability.

prime decomposition

1
/pɹˈaɪm dˌikəmpoʊzˈɪʃən/
fixed phrase technical

writing a number as primes

showing a number as a product of primes

ตัวอย่าง
  • Find the prime decomposition of 84.
  • Prime decomposition helps you simplify fractions.
  • The worksheet asked students to write a prime decomposition for each number.

rate of decomposition

1
/ɹˈeɪt əv dˌikəmpoʊzˈɪʃən/
fixed phrase technical

speed of decaying

how fast something decays

ตัวอย่าง
  • Scientists measured the rate of decomposition of leaf litter in different forests.
  • Oxygen levels can affect the rate of decomposition in wetlands.
  • The rate of decomposition increases when the soil is warm and moist.

thermal decomposition

1
/θˈɚməl dˌikəmpoʊzˈɪʃən/
fixed phrase technical

breakdown caused by heat

a chemical breaks apart because of heat

ตัวอย่าง
  • The experiment demonstrated thermal decomposition at 300°C.
  • Thermal decomposition can produce gases that must be vented safely.
  • Some plastics release toxic fumes during thermal decomposition.

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