Smear may refer to: *A

smear test Cytopathology (from Greek , ''kytos'', "a hollow"; , ''pathos'', "fate, harm"; and , ''-logia'') is a branch of pathology that studies and diagnoses diseases on the cellular level. The discipline was founded by George Nicolas Papanicolaou in 1 ...

, wherein a sample is smeared over a microscope slide to be studied for any pathology **A smear test usually refers to a

pap test The Papanicolaou test (abbreviated as Pap test, also known as Pap smear (AE), cervical smear (BE), cervical screening (BE), or smear test (BE)) is a method of cervical screening used to detect potentially precancerous and cancerous processes in t ...

, that is, a cervical smear *

Smear (card game) Smear (also known as Schmier) is a North-American trick-taking card game of the All Fours group, and a variant of Pitch (Setback). Several slightly different versions are played in Michigan, Minnesota, Northern and Central Iowa, Wisconsin and als ...

* Smear Lake, a lake in Wisconsin *

Smear campaign A smear campaign, also referred to as a smear tactic or simply a smear, is an effort to damage or call into question someone's reputation, by propounding negative propaganda. It makes use of discrediting tactics. It can be applied to individual ...

, or smear job, an attack on the reputation of an individual or group making use of disinformation tactics * ''Smear Campaign'' (album), an album by Napalm Death *

Pat Smear Georg Albert Ruthenberg (born August 5, 1959), better known by his stage name Pat Smear, is an American musician. He is best known for being the lead guitarist and co-founder of Los Angeles-based punk band The Germs and for being a rhythm guitar ...

, the guitarist and actor *

Smear (optics) In optics, smear is used to refer to motion that has low temporal frequency relative to the integration/exposure time. This typically results from a relative rate of the image with respect to the detector (e.g., caused by movement in the scene). S ...

, motion that degrades sharpness, which is generally linear over the integration time *Colloquial name for a

glissando In music, a glissando (; plural: ''glissandi'', abbreviated ''gliss.'') is a glide from one pitch to another (). It is an Italianized musical term derived from the French ''glisser'', "to glide". In some contexts, it is distinguished from the co ...

, a glide from one musical pitch to another Smearing may refer to: * Smearing of an image taken by an

astronomical interferometer An astronomical interferometer or telescope array is a set of separate telescopes, mirror segments, or radio telescope antenna (radio), antennas that work together as a single telescope to provide higher resolution images of astronomical objects ...

: **

Bandwidth smearing Bandwidth smearing is a chromatic aberration of the reconstructed image of a celestial body observed by an astronomical interferometer that occurs because of the frequency bandwidth. In Fourier terms, the different frequencies of the bandwidth pr ...

, a chromatic aberration; **

Time smearing Time smearing or time-average smearing is the degradation of the reconstructed image of a celestial body observed by a ground-based interferometer that occurs because of the duration of the observation. Unlike single telescopes or cameras that ...

, a consequence of Earth rotation during the observation; * Smearing (climbing), a technique of rock climbing * Electron smearing, a tool for improving convergence in DFT calculations

See also