Dilation and curettage
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Dilation (or dilatation) may refer to:


Physiology or medicine

* Cervical dilation, the widening of the cervix in childbirth, miscarriage etc. * Coronary dilation, or coronary reflex * Dilation and curettage, the opening of the cervix and surgical removal of the contents of the uterus * Dilation and evacuation, the dilation of the cervix and evacuation of the contents of the uterus * Esophageal dilation, a procedure for widening a narrowed esophagus * Pupillary dilation (also called mydriasis), the widening of the pupil of the eye * Vasodilation, the widening of luminal diameter in blood vessels


Mathematics

* Dilation (affine geometry), an affine transformation *
Dilation (metric space) In mathematics, a dilation is a function f from a metric space M into itself that satisfies the identity :d(f(x),f(y))=rd(x,y) for all points x, y \in M, where d(x, y) is the distance from x to y and r is some positive real number. In Euclidean s ...
, a function from a metric space into itself * Dilation (operator theory), a dilation of an operator on a Hilbert space * Dilation (morphology), an operation in mathematical morphology *
Scaling (geometry) In affine geometry, uniform scaling (or isotropic scaling) is a linear transformation that enlarges (increases) or shrinks (diminishes) objects by a '' scale factor'' that is the same in all directions ( isotropically). The result of uniform s ...
, including: ** Homogeneous dilation ( homothety), the scalar multiplication operator on a vector space or affine space ** Inhomogeneous dilation, where scale factors may differ in different directions


Chemistry and physics

* Dilation (physics), size increase * Thermal expansion of crystalline triglycerides is referred to as dilation * Scale invariance, a feature of objects or laws that do not change if length scales (or energy scales) are multiplied by a common factor * Time dilation, the observation that another's clock is ticking at a slower rate as measured by one's own clock


Music

* ''Dilate'' (Bardo Pond album) * ''Dilate'' (Ani DiFranco album) * Dilate (musical project), ambient solo project of Vampire Rodents keyboardist Victor Wulf * ''Dilation'' (album), 2011 album by comedian Rory Scovel * ''Dialate,'' 1996 song by Linkin Park


See also

* Dilution (disambiguation) {{disambiguation