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a variation, as about a fixed variation or mass; a wavelike motion.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


1. The act of fluctuating.
2. A wavelike motion felt on palpating a cavity with nonrigid walls, especially one containing fluid. Synonym(s): fluctuancy
Farlex Partner Medical Dictionary © Farlex 2012


1. The act of fluctuating.
2. A wavelike motion felt on palpating a cavity with nonrigid walls.
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about fluctuation

Q. Still there are some fluctuations in my weight every month.Can anyone explain? I am an obese guy. But still there are some fluctuations in my weight every month. Sometimes it goes up and sometimes it goes down. But overall I remain as overweight. I was told that I am having water weight and the reason given was that of fast foods. But I am confused. Can anyone explain?

A. The salt in the junk foods will retain water in the cells. Thus this retained water increases the body weight. So, high salt consumption can lead to water retention. This is known as water weight. And this can also lead to high blood pressure. Stop consuming fast foods which helps in losing weight.

Q. can serious mood fluctuations be caused in young men by anything else but bipolar? My brother is suffering (well we are suffering it as well...) some serious moods. It's not like he's just upset or anything like that. He has never acted this way. It has been really hard to communicate with him lately and I'm worried. no way to get him checked, he's unwilling. We dont have bipolar in the family, well, yet. any suggestions?

A. The picture you describe may result from many causes. Does he use drugs or anything like that? Does he have hard time these days at work/school/home etc? It may cause different moods. Schizophrenia may present in way similar to what you describe. In my opinion, consulting a professional (e.g. a psychiatrist, because it's not really feasible to diagnose it based on your 5-lines description) may be wise, It's not necessarily bipolar, if that's what you ask.

Take care

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References in periodicals archive ?
This paper discusses the features of the traffic flow which considers boundary effects and fluctuation, and we present the six kinds of car running types[18], [14].
Based on the relationship between the fluctuation frequency [[omega].sub.a] and the nominal gear mesh frequency [omega], the input speed fluctuations can be classified into two categorizations: in the first type, the fluctuation frequency [[omega].sub.a] is constant; in the second type, fluctuation frequency [[omega].sub.a] is proportional to the nominal mesh frequency [omega]; that is, [omega] = P[[omega].sub.a], such as the engine speed fluctuation [15,16].
The tasks of the study were to obtain information on the pressure fluctuations during normal pump operation and with a feed failure mode at different points of the stand.
The pressure fluctuations were generated with the use of the standard catheter for embryo transfer (Labotect, Bovender-Gottingen, Germany) connected to 1 ml insulin syringe (Polfa Lublin, Poland).
As an example, histograms for 12 types of thickness fluctuation distribution for a structure with eight walls (Fig.
Age is also a key factor for fluctuation.People who are under 30 years of age, graduates, and people with short-term experience are the most likely to change their jobs, said Halbrscarontaacutet, with people under the age of 30 having a fluctuation rate over five times higher than people under the age of 40.Manpower statistics shows that in terms of fluctuation the most important factor is finances.
We have thus identified that fluctuations in M3 are important when looking at economic trends, but we have published M2 in the Statistics Chart of this series.
RH in the semi-arid area where the study was undertaken (Sultan Hamud) was very low, compared to that of the highland area (Mau-Summit), but with a higher fluctuation range of 5%.
As a novel power electronic device, electric spring (ES) was at first used to restrain the bus voltage fluctuation caused by the access of DG, and the frequency adjustment function can be obtained simultaneously.
Jinghua, "A Comparison of different measures for dynamical event-mean transverse momentum fluctuation," 2004, https://arxiv.org/abs/hep-ph/0401129.
The Heisenberg indeterminacy principle reads, for the entire fluctuation at a given t:
Based on the new modifications, DFM-listed securities will be grouped in one category and traded under a unified fluctuation band, contrary to the split between Active and Non-Active.