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a peculiar sound lacking resonance, heard on percussing an abnormally solid part.


/flat·ness/ (-nes) a peculiar sound lacking resonance, heard on percussing an abnormally solid part.


Resonance heard on percussion over solid organs or when there is fluid in the thoracic cavity.


a peculiar sound lacking resonance, heard on percussing an abnormally solid part.

Patient discussion about flatness

Q. what does the term flat affect means?

A. "Flat affect: A severe reduction in emotional expressiveness. People with depression and schizophrenia often show flat affect. A person with schizophrenia may not show the signs of normal emotion, perhaps may speak in a monotonous voice, have diminished facial expressions, and appear extremely apathetic. Also known as blunted affect."

www.medterms.com :)
couldn't said it better myself...:)

Q. Can flat feet be repaired by surgery? I have flat feet and I’m looking for all sorts of treatments for it- I heard there is a surgery for it- is it helpful?

A. As far as I know- they don’t treat flat feet that are asymptomatic. So first of all check if it bothers you. secondly there are 2 kinds of flat feet- rigid and flexible. There are different and treated differently. Not always a surgery (which is very painful and costly) is needed– I went to a Rolf method therapist by the advice of my orthopedic and it’s much better now. Ask an orthopedic.

Q. I think my son has flat foot, how to tell for sure? I didn't notice it before, he is 3 years old now and all shoes hurt him. Does it mean he has flat foot? what else can it be?

A. Pes planus (flat foot) is not a rare condition in toddlers, and may resolves spontaneously as the child grows. It is diagnosed clinically, i.e. by a doctor such as pediatrician or pediatric orthopedic surgeon, and radiographs are not universally indicated

More discussions about flatness
References in periodicals archive ?
The difference between how Division 3 and Division 9 measure floor flatness, and the changes that occur in a concrete slab between pouring and the time the floor covering is applied, have been the source of many arguments, much misspent time and numerous lawsuits," affirms ASCC Technical Director Bruce Suprenant.
Figure 4 shows the flatness of a light guide plate determined using the single parameter method with different process parameters for microinjection molding.
Comparison of measurements of flatness has been made with different device and methods, measured with CMM, marble table and comparator.
Flatness is a feature compared to itself, while parallelism requires that a feature be compared to a datum.
This interface between aesthetic and psychological flatness is addressed in a 1998 work (shot on both video and film) tellingly titled Flat Is Beautiful, in which Benning follows Taylor, a preadolescent tomboy, as she drifts through life.
The system offers up to 5 nm resolution and a standard accuracy of 50 nm, measuring flatness, line profile, radius and other surface parameters from a variety of surfaces (ground, lapped, honed, polished and superfinished).
Unfortunately, the powder also can add as much as 100 microns to the surface of the part, which affects the flatness measurement.
A key feature of both probe types is that their gain flatness response may be conveniently characterized using step response techniques.
Spergel of Princeton University calls the finding "only incremental progress," because other studies had already indicated that the universe contains only one-third as much matter as needed for flatness and supported the case for dark energy.
Many people are blind to space, having been overexposed to flatness in pictures, books and television.
Such random selfishness leaves the film with a glib, cartoony flatness.
The pitch's flatness and strict rectangularity forge a link with the city below and beyond, signalling culture as opposed to nature in the hill behind, and bequeathing to the building both its major axis and its most formal and symmetrical face.