focal

  • 81Focal cloud — A focal cloud is the collection of focal points of any imperfect lens,whether optical, electrostatic or electromagnetic. This includes Parabolic antennas and lens type reflective antennas of all kinds.In this focal cloud illustration, a perfect… …

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  • 82focal point — noun VERB + FOCAL POINT ▪ act as, be, become, form, make sth, provide (sth with), serve as PREPOSITION ▪ focal point  …

    Collocations dictionary

  • 83Focal point — A focal point may mean: * Focus (optics), the point at which initially collimated rays of light meet after passing through a convex lens, or reflecting off of a concave mirror. * In mathematics: ** Focus (geometry), a special point used in… …

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  • 84Focal concerns theory — In criminology, the focal concerns theory, posited in 1958 by Walter B. Miller, attempts to explain the behavior of members of adolescent street corner groups in lower class communities as being based around six focal concerns: trouble, toughness …

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  • 85focal distance — noun the distance from a lens to its focus • Syn: ↑focal length • Hypernyms: ↑distance * * * focal distance noun Focal length • • • Main Entry: ↑focus * * * …

    Useful english dictionary

  • 86Focal Press — Infobox Company name = Focal Press type = genre = foundation = 1938 founder = location city = Boston, MA and Oxford, UK location country = location = locations = area served = key people = industry = Media Technology Publising products = services …

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  • 87Focal nodular hyperplasia — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 33467 ICD10 = ICD9 = ICDO = OMIM = MedlinePlus = eMedicineSubj = radio eMedicineTopic = 286 MeshID = D020518 Focal nodular hyperplasia (FNH) is a benign tumour of the liver (hepatic tumour),… …

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  • 88Focal neurologic symptom — A focal neurologic symptom is a problem that occurs in the brain or nervous system. It may result in a loss of movement or sensation, or focal epileptic seizure. The type, location, and severity of the change can indicate the area of the brain or …

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  • 89Focal infection — A focal infection is a local infection (affecting a small area of the body) that causes subsequent infection or symptoms in other parts of the body. For example, tetanus (lockjaw) is caused by the release of exotoxin from a local infection,… …

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  • 90Focal Point — Infobox Album Name = Focal Point Type = studio Artist = Shawn McDonald Released = 2002 Recorded = Genre = CCM Length = 69:02 Label = independent Producer = Reviews = Last album = This album = Focal Point (2002) Next album = Simply Nothing (2004)… …

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