nounWord forms: plural-cuses or -ci (-saɪ, -kaɪ, -kiː)
1.
a point of convergence of light or other electromagnetic radiation, particles, sound waves, etc, or a point from which they appear to diverge
2. another name for focal point (sense 1), focal length
3. optics
the state of an optical image when it is distinct and clearly defined or the state of an instrument producing this image
the picture is in focus
the telescope is out of focus
4.
a point upon which attention, activity, etc, is directed or concentrated
5. geometry
a fixed reference point on the concave side of a conic section, used when defining its eccentricity
6.
the point beneath the earth's surface at which an earthquake or underground nuclear explosion originates
Compare epicentre
7. pathology
the main site of an infection or a localized region of diseased tissue
verbWord forms: -cuses, -cusing, -cused, -cusses, -cussing or -cussed
8.
to bring or come to a focus or into focus
9. (transitive; often foll byon)
to fix attention (on); concentrate
Derived forms
focusable (ˈfocusable)
adjective
focuser (ˈfocuser)
noun
Word origin
C17: via New Latin from Latin: hearth, fireplace
Examples of 'foci' in a sentence
foci
However increasing cattle treatment coverage allowed for further reduction in prevalence in both foci.
Julianne Meisner, Ruanne V. Barnabas, Peter M. Rabinowitz 2019, 'A mathematical model for evaluating the role of trypanocide treatment of cattle inthe epidemiology and control of Trypanosoma brucei rhodesiense and T. b. gambiensesleeping sickness in Uganda', Parasite Epidemiology and Controlhttp://www.sciencedirect.com/science/article/pii/S2405673118300916. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The most common dental procedures were restorative treatment, preventive treatment and removal of infectious foci.
Camila Carrillo, Heloisa Vizeu, Luis Alberto Soares-Júnior, Marcelo Fava, VicenteOdone Filho 2010, 'Dental approach in the pediatric oncology patient: characteristics of the populationtreated at the dentistry unit in a pediatric oncology brazilian teaching hospital',Clinicshttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S1807-59322010000600002. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The primary foci are function and structure prediction tools of protein genes.
Daisuke Kihara, Yifeng David Yang, Troy Hawkins 2006, 'Bioinformatics Resources for Cancer Research with an Emphasis on Gene Function andStructure Prediction Tools', Cancer Informaticshttps://doi.org/10.1177/117693510600200020. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
High grade dysplastic foci were found in four adenomatous polyps (21%).
Drausio Jefferson Morais, Ademar Yamanaka, José Murilo Robilotta Zeitune, Nelson AdamiAndreollo 2007, 'Gastric polyps: a retrospective analysis of 26,000 digestive endoscopies Pólipos gástricos:análise retrospectiva de 26 000 endoscopias digestivas', Arquivos de Gastroenterologiahttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-28032007000100004. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Rapid, localised infection was populated by discrete foci of persisting virus-infected cells.
Deborah Ferguson, Giada Mattiuzzo, Claire Ham, Richard Stebbings, Bo Li, Nicola J.Rose, Edward T. Mee, Deborah Smith, Mark Page, Martin P. Cranage, Neil Almond, GregJ. Towers, Neil J. Berry 2014, 'Early Biodistribution and Persistence of a Protective Live Attenuated SIV VaccineElicits Localised Innate Responses in Multiple Lymphoid Tissues', PLoS ONE10.1371/journal.pone.0104390. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In the control group, vascularity (at least 2 foci) was identified in 32% joints.
Rakhee Kumar Paruchuri, Shailesh Kumar Padmini, Liza Rajasekhar 2018, 'ROLE OF ULTRASOUND AND COLOUR DOPPLER IN SACROILIITIS AND CORRELATION WITH AGE MATCHEDPOPULATION', Journal of Evidence Based Medicine and Healthcarehttps://jebmh.com/assets/data_pdf/Rakhee_Kumar_-_FINAL.pdf. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Spatial foci of higher adult mortality risk were observed, indicating a strong non-random pattern.
Benn Sartorius, Kathleen Kahn, Mark A. Collinson, Kurt Sartorius, Stephen M. Tollman 2013, 'Dying in their prime: determinants and space-time risk of adult mortality in ruralSouth Africa', Geospatial Healthhttp://www.geospatialhealth.net/index.php/gh/article/view/83. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Fine foci of increased autofluorescence were observed along the arcades in both eyes.
Federica Bertoli, Silvia Pignatto, Francesca Rizzetto, Paolo Lanzetta 2018, 'A 5-Year-Old Case of Choroidal Neovascularization in Enhanced S-Cone Syndrome Treatedwith Ranibizumab', Case Reports in Ophthalmologyhttps://www.karger.com/Article/FullText/495743. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Initial computer tomography scan of the brain showed findings of distant metastatic foci.
Chun Ian Soo, Boon Hau Ng, Eng Liang Tan, Faisal Abdul Hamid 2016, 'Ambiguous presentations of pulmonary epithelioid hemangioendothelioma: Two case reportsof a rare pulmonary malignancy', SAGE Open Medical Case Reportshttps://doi.org/10.1177/2050313X16650323. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Liver showed multifocal foci of vacuolar degeneration, lipidic accumulation, sometimes associated to hepatocyte necrosis.
Bongiovanni Laura, Di Girolamo Nicola, Montani Alessandro, Della Salda Leonardo, SelleriPaolo 2014, 'Fatal hemorrhagic–necrotizing pancreatitis associated with pancreatic and hepaticlipidosis in an obese Asian palm civet (Paradoxurus hermaphroditus)', Asian Pacific Journal of Tropical Biomedicinehttp://www.sciencedirect.com/science/article/pii/S2221169115302458. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
All related terms of 'foci'
focus
If you focus on a particular topic or if your attention is focused on it, you concentrate on it and think about it, discuss it, or deal with it, rather than dealing with other topics.
focusses
a point of convergence of light or other electromagnetic radiation , particles, sound waves, etc, or a point from which they appear to diverge
focal point
The focal point of something is the thing that people concentrate on or pay most attention to.
principal focus
the point on the axis of a lens or mirror to which parallel rays of light converge or from which they appear to diverge after refraction or reflection
prime focus
the focal point of the objective lens or primary mirror of a telescope
soft focus
If something in a photograph or film is in soft focus , it has been made slightly unclear to give it a more romantic effect.
sensate focus
a series of touching exercises designed to increase intimacy in a sexual relationship
automatic focus
a system in a camera which automatically adjusts the lens so that the object being photographed is in focus , often one using infrared light to estimate the distance of the object from the camera
depth of focus
the amount by which the distance between the camera lens and the film can be altered without the resulting image appearing blurred
autofocus
a device that focuses a lens , camera , etc. automatically