Condensate
noun
Definition
1. (noun) A liquid that forms when a gas or vapour cools down and turns back into liquid — the result of condensation.
2. (noun) A light liquid hydrocarbon that is extracted alongside natural gas — used in the energy industry.
2. (noun) A light liquid hydrocarbon that is extracted alongside natural gas — used in the energy industry.
Context Alive
You wake up on a cold morning and notice water droplets covering the inside of your bedroom window. You wipe the glass with your hand and the condensate runs down in little streams. Your flatmate walks in and asks why the window is wet. You explain that the warm air inside hit the cold glass overnight and the moisture turned into liquid. She nods and says you should probably open the window more often.
Meanings
2 meanings 1 Liquid Formed from Cooled Vapour (Noun) Common ▼
This meaning is about the liquid that appears when a gas or vapour loses heat and turns back into liquid form — the physical result of condensation. Imagine boiling water in a pot with the lid on. After a few minutes, you lift the lid and see water droplets covering the underside — that liquid is condensate. This is describing the product of a natural process where warm, moist air meets a cooler surface. You might read that "condensate builds up inside the pipes during winter" in a maintenance guide about heating systems, or someone could say "the condensate on the windows is a sign of poor ventilation" when a room is too humid and sealed. Or think about an air conditioning unit — as it cools warm air, moisture is pulled out and collects as condensate in a drip tray underneath. The word describes the liquid itself, not the process.
✏️ Don't confuse condensate (the noun — the liquid product) with condensation (the process of gas turning into liquid). You see condensation on a cold glass, but the droplets themselves are condensate. In everyday English, most people just say "condensation" for both — condensate is more technical and used in engineering, HVAC, and science contexts.
2 A Light Liquid Hydrocarbon from Gas Extraction (Noun) Common ▼
This meaning is about a specific type of light oil that comes out of the ground alongside natural gas — it's a valuable product in the energy industry. Imagine an oil company drilling for natural gas deep underground. When the gas comes to the surface and cools, some of it turns into a light liquid — that liquid is called condensate, and it can be refined into fuels like petrol and diesel. This is describing a natural resource that sits between crude oil and natural gas. You might read that "gas condensate production increased by 15% this quarter" in an energy company's financial report, or someone could say "the field produces both gas and condensate" when describing what comes out of a particular well. Or think about a refinery that processes condensate into lighter fuels — it's cheaper to refine than heavy crude oil because it's already quite light. The word is standard terminology in the oil and gas industry.
✏️ Gas condensate is the full term in the energy industry. It's lighter than crude oil and easier to refine, which makes it commercially valuable. You'll see it in financial news, energy reports, and commodity markets. Countries like Qatar, Iran, and Australia are major condensate producers. It's sometimes just called "condensate" or "condo" in industry slang.
Common Patterns
Science / Engineering
condensate + forms / builds up → liquid appears as a result of cooling — describing the process happening
Condensate builds up inside the pipes when the temperature drops.
condensate on + surface → liquid droplets sitting on a cold surface
There was condensate on the inside of every window in the flat.
drain / remove the condensate → to get rid of the collected liquid — common in HVAC and plumbing
The technician showed us how to drain the condensate from the boiler.
Energy Industry
gas condensate → a light hydrocarbon liquid extracted with natural gas
The field produces over 50,000 barrels of gas condensate per day.
condensate production → the amount of condensate extracted from gas operations
Condensate production has risen steadily over the past five years.
condensate + refining / processing → turning raw condensate into usable fuels
The new plant will focus on condensate processing for the domestic fuel market.
Collocations
8 collocationsgas condensate
light liquid hydrocarbon produced alongside natural gas
condensate builds up
liquid gradually collects on surfaces or inside systems
condensate on windows
water droplets forming on cold glass from warm indoor air
drain the condensate
to remove collected liquid from a system or pipe
condensate production
the extraction of liquid hydrocarbons from gas fields
condensate pipe
a pipe that carries collected liquid away from a boiler or AC unit
condensate trap
a device that collects liquid to prevent it blocking a system
condensate removal
the process of getting rid of unwanted collected liquid
Example Sentences
10 examples
1
Condensate had built up on all the windows overnight because the heating was on.
Water droplets had formed on every window during the night because the heaters were running.
2
The boiler's condensate pipe froze during the cold snap and the system stopped working.
The pipe that drains liquid from the boiler froze in the extreme cold and the heating broke down.
3
The country exports large quantities of gas condensate to refineries across Asia.
The nation sends huge volumes of light liquid hydrocarbons to processing plants throughout Asia.
4
You need to wipe the condensate off the walls regularly to prevent mould.
You should clean the moisture off the walls often to stop mould from growing.
5
Condensate production from the offshore field exceeded expectations this quarter.
The offshore site produced more light liquid hydrocarbons than predicted in the last three months.
6
The air conditioning unit collects condensate in a tray that needs to be emptied.
The AC system gathers water in a container underneath that has to be drained regularly.
7
When steam hits a cold surface, it cools and forms condensate almost immediately.
When steam touches something cold, it turns back into water droplets within seconds.
8
Gas condensate is lighter than crude oil and cheaper to refine into fuel.
Light liquid hydrocarbons from gas fields are less dense than crude and cost less to process.
9
The engineer checked the condensate trap to make sure it wasn't blocked.
The engineer inspected the liquid collection device to confirm it wasn't clogged.
10
Poor ventilation causes excess condensate to form on cold surfaces inside the house.
Bad airflow leads to too much moisture collecting on cold areas inside the home.
Synonyms & Antonyms
6 items
Synonymscondensation
often used interchangeably in everyday English, though technically it's the process, not the product
moisture
more general — any water in the form of small droplets or dampness
distillate
a liquid produced by heating and then cooling — similar process but used in different contexts
Antonymsvapour
the gas form before it cools and becomes liquid
steam
water in gas form — the state before condensation happens
evaporate
the reverse process — liquid turning into gas instead of gas turning into liquid