mean (redirected from meanest)

mean (men) an average; a numerical value that in some sense represents the central value of a set of numbers.

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arithmetic mean  the sum of n numbers divided by n.

geometric mean  the n th root of the product of n numbers.

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mean (mn)

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.

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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 (x) life,

n See average life.

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mean

an average; a numerical value intermediate between two extremes. Called also arithmetic mean.

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mean arterial pressure

average pressure in artery for one heartbeat.

mean cell constants

see erythrocyte indices.

mean corpuscular hemoglobin (MCH)

see mch.

mean corpuscular hemoglobin concentration (MCHC)

see mchc.

mean corpuscular volume (MCV)

see mcv.

mean deviation

the 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 mean

the antilog of the mean of the logarithm of the calculated values, the same as the n^th root of the product of the values. It is often a more useful mean for growth curves.

harmonic mean

the reciprocal of the arithmetic mean of values converted to their reciprocals (used in dealing with skewed data).

rolling mean

see moving average.

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mean Statistics The sum of values divided by number of values. See Arithmetric mean, Geometric mean, Weighted mean.