انگلیسی

decomposition

gb/dˌikəmpoʊzˈɪʃən/ us/dˌikəmpoʊzˈɪʃən/
B2 انگلیسی
معنی‌ها
۰ معنی
اسم B2 process
1

natural breakdown of organic matter

the process of rotting and breaking down naturally

الگوی کاربرد: decomposition of [organic material]
اشتباه رایج:
Often confused with decomposition meaning “analysis” or “breaking a problem into parts.”
هم‌معنی‌ها
decay (More general and common; less scientific.) | rotting (More informal and vivid.)
متضادها
preservation (Keeping something from decaying.)
ترکیب‌های رایج
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
موضوع‌ها
nature |science |environment
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • Food decomposition can smell bad.
  • Leaves decompose in the ground.
اسم formal C1 state
2

being partly or fully decayed

the condition of being rotten or decayed

الگوی کاربرد: in (a) decomposition; in a state of decomposition
اشتباه رایج:
Learners may use decomposition as a countable noun (*a decomposition*) in this sense; it is usually uncountable.
هم‌معنی‌ها
decay (Broader; not as specific to post-death contexts.) | putrefaction (More technical and strongly associated with dead tissue.)
متضادها
freshness (The opposite condition of not being decayed.)
ترکیب‌های رایج
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
موضوع‌ها
health |crime |science
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • The meat was in decomposition.
  • The body was in a state of decomposition.
اسم C1 process
3

breaking something into smaller parts

dividing something difficult into smaller parts to study it

الگوی کاربرد: decomposition of [a problem/task/system] (into [parts])
اشتباه رایج:
Not used for physical damage; for physical breaking, learners often want “breakage” or “damage.”
هم‌معنی‌ها
breakdown (More common and less formal; can also mean a failure.) | analysis (Focuses on studying something, not necessarily splitting it into parts.)
متضادها
synthesis (Combining parts to form a whole.)
ترکیب‌های رایج
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
موضوع‌ها
education |work |problem_solving
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • We used decomposition to solve the problem.
  • Break the task down with decomposition.
اسم technical C1 process
4

chemical breakdown into simpler substances

a reaction where one chemical becomes simpler chemicals

الگوی کاربرد: decomposition of [a compound] (into [products])
اشتباه رایج:
In chemistry, decomposition is a type of reaction, not just “rotting.”
هم‌معنی‌ها
breakdown (More general; can describe chemical change without naming the reaction type.)
متضادها
synthesis (A reaction where simpler substances combine to form a compound.)
ترکیب‌های رایج
chemical decomposition |thermal decomposition |photochemical decomposition |decomposition reaction |decomposition products |decomposition temperature |catalytic decomposition |decomposition pathway |decomposition occurs |undergo decomposition
موضوع‌ها
science |chemistry |education
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • Heat caused decomposition of the chemical.
  • The reaction was a decomposition.
اسم technical C1 abstract
5

representing something as component parts

writing a number or matrix as simpler parts

الگوی کاربرد: decomposition of [a number/matrix] (into [components])
اشتباه رایج:
Often confused with “composition” in math (building a function), which is a different idea.
هم‌معنی‌ها
factorization (Common for numbers/polynomials; one specific type of decomposition.) | expansion (General term for rewriting in a sum/series; not always a decomposition.)
متضادها
composition (Combining simpler mappings or parts to build a more complex object.)
ترکیب‌های رایج
prime decomposition |matrix decomposition |factor decomposition |spectral decomposition |decomposition into factors |decomposition into eigenvalues |decomposition theorem |a decomposition method |unique decomposition |orthogonal decomposition
موضوع‌ها
math |education |technology
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • We used decomposition to factor the number.
  • The matrix decomposition helped the calculation.
اسم technical C1 process
6

dividing a system into modules

splitting a system into smaller parts to build it

الگوی کاربرد: decomposition of [a system/project] into [modules/components]
اشتباه رایج:
In project management, “decomposition” is not the same as “deadline breakdown”; it means dividing the work into parts.
هم‌معنی‌ها
modularization (Emphasizes designing as modules; common in software.) | partitioning (More general; can be used in systems, data, or networks.)
متضادها
integration (Putting separate parts together into a unified system.)
ترکیب‌های رایج
functional decomposition |system decomposition |module decomposition |architectural decomposition |decomposition into components |decomposition into services |top-down decomposition |design decomposition |decomposition strategy |decomposition diagram
موضوع‌ها
technology |engineering |business
نمونه‌ها
  • 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.
نمونه‌های زبان‌آموزی
  • We did decomposition to plan the project.
  • Decomposition helped us build the system.
دستور زبان
صورت پایه
decomposition
IPA
GB/dˌikəmpoʊzˈɪʃən/
US/dˌikəmpoʊzˈɪʃən/
هجاها و تکیه
de - com - pos - i - tion (۵ هجا)
Stress on 4th syllable (i)
صورت‌های واژه
Noun
  • Base: decomposition
  • Plural: decomposition, decompositions
خانوادهٔ واژه
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
عبارت‌ها

advanced state of decomposition

1
/ədvˈænst stˈeɪt əv dˌikəmpoʊzˈɪʃən/
fixed phrase formal

very far along in decay

very decayed

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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

نمونه‌ها
  • 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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