flux
gb/flˈʌks/ us/flˈʌks/
B2
English
~ 8700
képlékeny, változóban van, fluxus, folyasztószer, súlyos hasmenés, vérhas, folyasztószert visz fel
NOUN
B2
1
képlékeny
B2
Usage pattern:
[something] is in flux
The company is in a state of flux after the merger.
Az összeolvadás után a vállalat képlékeny helyzetben van.
Political alliances in the region remain in flux.
A régió politikai szövetségei továbbra is képlékenyek.
Her career plans are still in flux as she considers different options.
Fashion trends are always in flux, changing from season to season.
The housing market has been in flux since interest rates went up.
Learner examples
My job situation is in flux right now.
A munkámmal kapcsolatos helyzet most eléggé képlékeny.
The rules are in flux, so they may change again.
A szabályok még képlékenyek, ezért lehet, hogy újra megváltoznak.
Our plans for the weekend are still in flux.
The price of food is in flux this year.
The team is in flux after losing two players.
Common mistake:
Learners sometimes confuse "flux" with the verb "flex" because they look similar. Another mistake is to use "flux" as a general synonym for any change; it is better used for ongoing, uncertain, or unstable change, often in the pattern "in flux" or "in a state of flux".
Meaning
state of ongoing change
Collocations
in flux
|constant flux
|state of flux
|political flux
|market flux
|social flux
Synonyms
change (More general and common; does not by itself suggest an ongoing, unstable situation the way "flux" does.)
|
instability (Focuses more on lack of stability or security, while "flux" is more neutral about change.)
Antonyms
stability (Describes a condition that is firm and unchanging, the opposite of a situation in flux.)
|
constancy (Emphasizes remaining the same over time, unlike the continuous change of flux.)
Themes
general
|business
|society
|core_vocabulary
Definition
A state where things are always changing and not fixed or stable.
A situation or condition that is constantly changing or likely to change soon.
NOUN
C1
TECHNICAL
2
fluxus
C1
The magnetic flux through the loop changes as the magnet moves.
A hurkon áthaladó mágneses fluxus változik, ahogy a mágnes mozog.
Engineers calculated the heat flux across the wall to improve insulation.
A mérnökök kiszámították a falon átmenő hőfluxust, hogy javítsák a szigetelést.
Solar panels are positioned to maximize the flux of sunlight on their surface.
The model predicts a higher carbon flux from the soil under warmer conditions.
They monitored neutron flux inside the reactor core for safety reasons.
Learner examples
We studied magnetic flux in physics class.
Fizikaórán a mágneses fluxusról tanultunk.
High heat flux can damage the material.
A nagy hőfluxus károsíthatja az anyagot.
The scientist measured the flux of particles through the filter.
Solar flux on the Earth changes during the year.
The engineer explained that flux means how much passes through an area.
Common mistake:
Learners may think "flux" in physics only refers to liquids, but it more generally covers fields, particles, energy, and other quantities passing through a surface. Some also confuse it with simple "speed"; flux is specifically about how much goes through a given area.
Meaning
rate of flow through area
Collocations
magnetic flux
|electric flux
|heat flux
|neutron flux
|mass flux
|radiative flux
Synonyms
flow rate (More general engineering term; often used for fluids, while "flux" is broader and used for fields and particles as well.)
Antonyms
zero flux (Describes the situation where nothing is passing through the surface, effectively the opposite of having a nonzero flux.)
Themes
science
|engineering
|physics
Definition
In science, a measure of how much energy, fluid, or particles go through a surface in a certain amount of time.
In physics and engineering, the amount of a physical quantity, such as energy, particles, or field lines, passing through a given surface in a given time.
NOUN
C1
TECHNICAL
3
Usage pattern:
[someone] applies flux to [a surface]
Make sure you apply flux to the joint before you start soldering.
Mielőtt forrasztani kezdesz, mindenképpen vigyél fel folyasztószert az illesztésre.
The electrician used a rosin-based flux for the circuit board.
A villanyszerelő gyantaalapú folyasztószert használt az áramköri laphoz.
Too much flux can leave sticky residue on the components.
This wire has a flux core, so you don’t need separate flux.
The welder cleaned off the old flux before repairing the seam.
Learner examples
He put flux on the metal before he soldered it.
Forrasztás előtt folyasztószert tett a fémre.
This solder wire has flux inside it.
Ez a forrasztóhuzal belül folyasztószert tartalmaz.
If you do not use flux, the solder may not stick.
Please clean the extra flux from the board.
The teacher showed us how to use flux safely.
Common mistake:
Learners sometimes think "flux" here means "flow" in general, but in soldering it specifically refers to a chemical substance. Another mistake is to call any paste or liquid used in metal work "flux"; not all such substances are fluxes.
Meaning
substance used in soldering
Collocations
soldering flux
|apply flux
|flux paste
|rosin flux
|flux core
|flux residue
Synonyms
soldering flux (More specific term highlighting its use in soldering; "flux" alone is shorter and widely used within the field.)
Antonyms
oxidizer (An oxidizer promotes oxidation of metals, while flux is used to prevent oxidation during soldering or welding.)
Themes
engineering
|technology
|crafts
|work
Definition
A chemical that you put on metal before soldering or welding to clean it and help the melted metal stick well.
A chemical substance applied to metal surfaces to clean them, prevent oxidation, and help molten solder or metal flow and bond properly during soldering or welding.
NOUN
C2
ARCHAIC
4
vérhas
B2
Usage pattern:
[someone] suffers from flux
The old records state that many villagers died of the bloody flux.
A régi feljegyzések szerint sok falubeli halt meg vérhasban.
In eighteenth-century texts, "flux" often refers to severe intestinal illness.
A 18. századi szövegekben a „flux” gyakran súlyos bélbetegségre utal.
Patients suffering from flux were kept in a separate ward.
The doctor wrote that the child had been weakened by a long flux.
Historical accounts mention an outbreak of flux during the voyage.
Learner examples
In old books, people sometimes die of a disease called "flux."
Régi könyvekben az emberek néha egy „flux”-nak nevezett betegségbe halnak bele.
Doctors today do not usually use the word "flux" for this illness.
Az orvosok ma már általában nem használják a „flux” szót erre a betegségre.
The term "bloody flux" is an old name for a very bad bowel disease.
The history book says many soldiers got the flux.
"Flux" in this meaning is now mostly historical.
Common mistake:
Learners may incorrectly use this old medical sense in modern conversation because they see it in historical texts. In current English, use modern medical terms like "diarrhea" or "dysentery" instead of "flux."
Meaning
abnormal flowing of body fluids
Collocations
bloody flux
|suffer from flux
|intestinal flux
|the flux
|epidemic of flux
Synonyms
dysentery (A modern medical term; refers specifically to inflammation of the intestine with blood and mucus, similar to what "bloody flux" historically described.)
Antonyms
normal digestion (Describes a healthy process with no abnormal discharge, contrasting with the severe symptoms implied by "flux" in this sense.)
Themes
medicine
|history
|health
|body
Definition
An old medical word for a strong and unhealthy flow from the body, especially very bad diarrhea.
An excessive or abnormal discharge of bodily fluid, especially severe diarrhea or dysentery, in older medical usage.
VERB
C1
TECHNICAL
5
Usage pattern:
[someone] fluxes [a surface/part]
After you clean the copper, flux the joint before heating it.
Miután megtisztítottad a rezet, melegítés előtt vigyél fel folyasztószert az illesztésre.
The technician carefully fluxed each pad on the circuit board.
A technikus gondosan folyasztószert vitt fel az áramköri lap minden forrasztási pontjára.
If you don’t flux the surface properly, the solder will not wet the metal.
We need to flux the pipe ends before brazing them.
Make sure you clean and flux the area around the crack.
Learner examples
First clean the metal, then flux the joint.
Először tisztítsd meg a fémet, aztán vigyél fel folyasztószert az illesztésre.
He forgot to flux the wire, so the solder did not stick.
Elfelejtett folyasztószert tenni a vezetékre, ezért a forrasztóón nem tapadt meg.
The teacher showed us how to flux the board.
You must flux the parts before you heat them.
They fluxed the pipe and then soldered it.
Common mistake:
Learners may try to use "flux" as a general verb for any kind of change (e.g., *"prices flux every day"*), which is incorrect. As a verb, "flux" is almost only used in technical contexts for applying flux to metal surfaces.
Meaning
apply flux to a surface
Collocations
flux the joint
|flux the surface
|properly fluxed
|clean and flux
|flux the pipe
Synonyms
coat (A more general verb meaning to cover a surface; "flux" specifically means to coat with flux for soldering or welding.)
Antonyms
deflux (A rare technical term meaning to remove flux, opposite of applying it.)
Themes
engineering
|technology
|crafts
|work
Definition
To put flux on metal before soldering or welding so that the melted metal can flow and stick well.
To coat or treat a metal surface with flux to clean it and improve the flow and bonding of molten solder or metal.
Grammar
Dictionary form
flux
IPA
GB/flˈʌks/
US/flˈʌks/
Syllables & stress
flux (1 syllable)
Stress on 1st syllable (flux)
Word forms
Noun
- Base: flux
- Plural: flux, fluxes
Word family
Forms
fluxes
noun
Core family
Related words
Expressions
in a state of flux
1/ˈɪn ə stˈeɪt əv flˈʌks/
fixed phrase
in a period of major change
In a time when many things are changing and the situation is not settled.
Examples
- The education system is in a state of flux after the recent reforms.
- Her personal life has been in a state of flux since she moved abroad.
- Global markets remain in a state of flux due to political tensions.
in flux
1/ˈɪn flˈʌks/
fixed phrase
changing and not stable
Changing a lot and not fixed; not stable yet.
Examples
- The schedule is still in flux, so we can move things around.
- Our plans for the project are in flux at the moment.
- The industry is in flux as new technologies appear.