deviation

deviation (de-ve-a´shun)

1. A turning away or aside from the normal point or course. 2. An abnormality. 3. In psychiatry and the behavioral sciences, a departure from an accepted norm, role, or rule.deviance; 4. A statistical measure representing the difference between an individual value in a set of values and the mean value in that set. [L. devio, to turn from the straight path, fr. de, from, + via, way]
axis d. deflection of the electrical axis of the heart to the right or left of the normal. See also left axis d., right axis d., axis.axis shift;
conjugate d. of the eyes 1. rotation of the eyes equally and simultaneously in the same direction, as occurs normally; 2. a condition in which both eyes are turned to the same side as a result of either paralysis or muscular spasm.
immune d. modification of an immune response to an antigen after prior exposure to that antigen.split tolerance;
d. to the left shift to the left (1)
left axis d. a mean electrical axis of the heart pointing to -30° or more negative. See hexaxial reference system.
primary d. the ocular deviation seen in paralysis of an ocular muscle when the nonparalyzed eye is used for fixation.
d. to the right shift to the right (1)
right axis d. a mean electrical axis of the heart pointing to the right of +90°. See hexaxial reference system.
secondary d. ocular deviation seen in paralysis of an ocular muscle when the paralyzed eye is used for fixation.
sexual d. a sexual practice that is biologically atypical, considered morally wrong, or legally prohibited. See bestiality, pedophilia.sexual perversion;
skew d. a hypertropia in which the eyes move in opposite directions equally; an acquired hypertropia, often fairly comitant, not fitting the characteristic pattern of trochlear nerve damage or of ocular muscle abnormality; often due to a brainstem or cerebellar lesion.
standard d. (SD, sigma) 1. statistical index of the degree of d. from central tendency, namely, of the variability within a distribution; the square root of the average of the squared d.'s from the mean. 2. a measure of dispersion or variation used to describe a characteristic of a frequency distribution.

 

Browse Medical References:

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M]
[N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]