contraction

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contraction,

in physics: see expansionexpansion,
in physics, increase in volume resulting from an increase in temperature. Contraction is the reverse process. When heat is applied to a body, the rate of vibration and the distances between the molecules composing it are increased and, hence, the space occupied by the
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.

contraction,

in writing: see abbreviationabbreviation,
in writing, arbitrary shortening of a word, usually by cutting off letters from the end, as in U.S. and Gen. (General). Contraction serves the same purpose but is understood strictly to be the shortening of a word by cutting out letters in the middle, the omission
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.

contraction

[kən′trak·shən]
(graphic arts)
A microfilm defect in the form of a compressed image that occurs when the film speed is reduced as the document passes through a rotary microfilmer.
(mathematics)
A function f from a metric space to itself for which there is a constant K that is less than 1 such that, for any two elements in the space, a and b, the distance between f (a) and f (b) is less than K times the distance between a and b.
(mechanics)
The action or process of becoming smaller or pressed together, as a gas on cooling.
(physiology)
Shortening of the fibers of muscle tissue.

contraction

Of concrete, the sum of volume changes occurring as the result of all processes affecting the bulk volume of a mass of concrete.

contraction

1. Physiol any normal shortening or tensing of an organ or part, esp of a muscle, e.g. during childbirth
2. Pathol any abnormal tightening or shrinking of an organ or part

contraction

References in periodicals archive ?
The expected contraction in the current account deficit during 2019 is mainly attributed to an increase in secondary income, and improvement in trade balance.
If [f.sub.1], ..., [f.sub.N] are contractions, then, the collage theorem is shown by [BEHL86].
The frequency and force of spontaneous contractions were calculated from the recordings manually.
Figure 3 showed sample entropy and fractal dimension of EEG in pre- and postfatigue elbow extension contractions. Paired sample t-test results have revealed that sample entropy and fractal dimension of the EEG at FC3, C3, FC4, and C4 were all significantly increased during postfatigue contraction compared with those during prefatigue contraction (sample entropy: C3: P = 0.017, FC3: P = 0.040, C4: P = 0.037, and C4: P = 0.013; Fractal dimensions: C3: P = 0.014, FC3: P = 0.032, C4: P = 0.011, and C4: P = 0.006).
We then explored the pathways involved in CEAA-mediated relaxation of ACh-induced contractions. Both VDCCs and BK channels contributed to ACh-induced contractions [27].
For the VI shear modulus measured under different step isometric contraction levels, there were no significant fouror three-way interaction effects among the four factors (sex x age x % MVC x knee joint angles, all p > 0.05).
The fifth chapter provides a comprehensive listing of contractions, including shortform words, in a print-to-braille format.
For each individual, the force of all phasic contractions was averaged to assess its mean phasic closing force.
Udo-Utun, On inclusion of F-contractions in ([delta], k)-weak contractions, Fixed Point Theory Appl.
The arithmetic means of amplitudes of contractions and standard errors of mean (SEMs) were calculated using SPSS version 16.
Neck muscle fatigue was induced through isometric contractions (Schieppati et al., 2003, Gosselin et al., 2004).