mean (
mēn) an average; a numerical value that in some sense represents the central value of a set of numbers.
arithmetic mean the sum of n numbers divided by n.
geometric mean the n th root of the product of n numbers.
mean (m n)n.1. Something having a position, quality, or condition midway between extremes; a medium. 2. A number that typifies a set of numbers, such as a geometric mean or an arithmetic mean. 3. The average value of a set of numbers. adj.1. Occupying a middle or intermediate position between two extremes. 2. Intermediate in size, extent, quality, time, or degree; medium. |
mean Etymology: ME, mene, in the middle
occupying a position midway between two extremes of a set of values or data. The arithmetic mean is a value that is derived by dividing the total of a set of values by the number of items in the set. The geometric mean is a value between the first and last of a set of values organized in a geometric progression. Compare
median,
mode.
mean (x),n a measure of central tendency that is the calculated arithmetic average of a series of scores.
mean (x) corpuscular hemoglobin,
n a measure of the weight of hemoglobin in a single red blood cell. The value is obtained by multiplying the hemoglobin value by 10 and dividing by the number of red blood cells. The normal range is between 27 and 31.
mean (x) corpuscular hemoglobin concentration (MCHC),
n a measure of red blood cells useful in identifying the type of anemia. The MCHC is obtained by multiplying the value of hemoglobin by 100 and dividing by the value of the hematocrit. The normal range is between 31.5 and 35.5.
mean (x) corpuscular volume (MCV),
n indicates the size of the red blood cells. The MCV is obtained by multiplying the hematocrit value by 10 and dividing by the number of red blood cells. The normal range is between 82 and 98.
mean
an average; a numerical value intermediate between two extremes. Called also arithmetic mean.
mean arterial pressureaverage pressure in artery for one heartbeat.
mean corpuscular hemoglobin (MCH) mean corpuscular hemoglobin concentration (MCHC) mean corpuscular volume (MCV) mean deviationthe average value of a set of absolute deviations from the mean of a set of observations.
mean electrical axis (MEA)in electrocardiography, a calculation based on the relative amplitude of Q, R and S waves in the three bipolar limb leads. It is an aid to recognizing right ventricular enlargement and various intraventricular conduction defects.
geometric meanthe antilog of the mean of the logarithm of the calculated values, the same as the nth root of the product of the values. It is often a more useful mean for growth curves.
harmonic meanthe reciprocal of the arithmetic mean of values converted to their reciprocals (used in dealing with skewed data).
mean Statistics The sum of values divided by number of values. See Arithmetric mean, Geometric mean, Weighted mean.
Patient discussion about means well.
Q. What does it mean when you have breast cancer in three different areas? My friend just found out that she has breast cancer in her right breast but three different lump types of cancer in one breast, and it has affected her lymph nodes at least two of them. What are her chances and what stage cancer would that be? She is going to be having a mastectomy and chemo.
A. Did they biopsied the lumps? Are they sure they are cancerous? If so that means it might got metastasized, the cancerous cells can move around in the blood stream and then just start “hook” on an organ and continue multiplying. That is a malignant and dangerous situation.
Q. Does diabetes during pregnancy mean I’ll have diabetes after the pregnancy? I’m 28 years-old, and recently gave birth to a cute baby girl. During the pregnancy I was diagnosed with diabetes, but I was tested after the pregnancy and currently my glucose is OK. I think I’ll want another baby in the future, and I’m a bit worried- will I have diabetes again? My father was diagnosed with diabetes when he was 55. Will I have also diabetes when I get older?
A. Congratulations for your new baby! Since you had diabetes during the last pregnancy (termed “gestational diabetes mellitus”), you indeed have a higher risk (about one- to two-thirds) to develop diabetes in your next pregnancy. However, it’s not absolute and depends on many other things, including your weight, age etc.
Q. My GP told me I suffer from osteo-arthritis. What does it mean? I am a 67 year old female that is in retirement. I went to my GP because I suffer from osteo-arthritis. What does it mean? I always thought that arthritis is a systemic disease and that it is called Rheumatoid arthritis. Are there really two different arthritis diseases or is it two names for the same situation?
A. Those are two distinct medical situation, and you can actually have both of them (as I have). Osteo-arthritis is a joint disease of the cartilage, and it is not a systemic disease. The best treatment is weight loss and pain killers. In severe case you can inject steroids to the join. It helped me, but you need an injection every 2 months or so.
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