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odour

An odor (American English) or odour (Commonwealth English; see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and animals can perceive by their sense of smell. An odor is also called a "smell" or a "scent", which can refer to either a pleasant or an unpleasant odor.
While "odor" can refer to pleasant and unpleasant odors, the terms "scent", "aroma", and "fragrance" are usually reserved for pleasant-smelling odors and are frequently used in the food and cosmetic industry to describe floral scents or to refer to perfumes.
In the United Kingdom and other Commonwealth, English-speaking nations, "odour" refers to scents in general—without positive or negative connotations; but in the United States, and for many non-native English speakers around the world, "odor" generally has a negative connotation as a synonym for "stink". An unpleasant odor can also be described as "reeking" or "smelly", and can also be called a "malodor" or "stench".

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  1. T

    Bad odour

    Guys,Is it possible to have bacteria in the copper water pipes feeding my bath. This is the story. Out of nowhere I was getting a really bad sulphur eggy smell when I was taking a shower which is over the bath.I thought it was the waste but I stripped it and cleaned it and to be honest it didn’t...
  2. B

    Odour from internal manhole cover - how to seal?

    Hi, I've an internal manhole cover in my garage, covering the main waste drains. Only moved into the house about 6 weeks ago but noticed it occasionally smells a bit cabbagey around the area of the cover. Have lifted, checked for blockage and cleaned out somewhat but still get a bit of smell...
  3. M

    Geberit Sigma 40 dual flush plate with odour extractor problem.

    Ive a Geberit Sigma 40 dual flush plate with odour extractor. I replaced the carbon filter with new one after LED button flashed (instructed this is why it flashes) but it still flashes are new one installed. How can I stop it flashing and get it to work properly?
  4. PlumbingNoob

    Smelly Odour Randomly Started

    I have had a mystery smell start in my house all of a sudden. The smell is prominent in an adjoining linen closet to my bathroom and appears to e coming from subfloor. My home sits on brick piers (single story) with a dirt subfloor and forced fan subfloor ventilation installed to keep it all...
  5. P

    Boiler broken - foul acrid odour throughout house.

    My boiler is broken and I'm currently waiting for an emergency visit, but this morning I noticed there was a terrible smell in 4/6 rooms. It's strongest in the bedroom where the boiler is located. It's a very pungent, chemical, acrid smell, a little bit like rotten eggs mixed with burning tyres...
  6. J

    One week old wetroom odour

    Hi I hope someone can advise a solution, My builder completed building and installing a wet room in a front porch, This is just a week old and I am getting drain odour coming out from the wet room grill or waste outlet, The smell is not sewage but waste water from the main drain outside, I...
  7. J

    Odour from an internal drain cover

    I have just had an extension built at my house. The extension has meant that the drain cover is now inside the house and a double sealed cover was installed. However there is a very strong smell of sewage in the house. Not always but from time to time. The drain is at the end of the run so I...
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