purring


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purring

a physiologically very complicated, semi-automatic, cyclic, controlled respiration involving alternating activity of the diaphragm and intrinsic laryngeal muscles in cats. The frequency of the alternation is about 25 times per second. Each cycle includes three phases of glottal closing, glottal opening with sound produced, further glottal opening with rapid airflow and low resistance at the glottis.
Purring occurs when cats are contented, sick or sleeping. It also provides the equivalent of complementary breaths during periods of shallow breathing.
References in periodicals archive ?
The purring cat had been completely normal in the morning before the kids had been to school and the parents to work.
I have written a book about her called Smokey The Very Loud Purring Cat.
BOOK SIGNING: Smokey, the world's loudest purring cat, with Tilly Downes, aged 5.
We originally started a purring competition in our home town of Northampton to promote the cats charity Cats Protection.
The 12-year-old feline has been entered into a Guinness world record attempt to see if she can become the loudest purring domestic cat on the planet.
Fauna Communications researchers hypothesize that purring gives these cats an advantage.
With purring being the normal mode of communication for a happy cat, researchers from The Centre of Mammal Vocal Communication at the University of Sussex found the 'gimme food' purr is much more highpitched.
And I don't like those strange purring noises that Mark Nicholas makes after a particularly sweetly-timed cover drive.
POLICE opened the bonnet of their patrol car when the engine started making a strange purring sound - and found a kitten sleeping peacefully.
When Whelan moved her head through Hall's hands, you could almost hear her purring.
Do we benefit from feeling their furry, purring essences?
Hit the button to retract the hardtop and put the XLR in gear--the purring engine howls and rockets you forward.