AskDefine | Define foci

Dictionary Definition



1 the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life" [syn: focusing, focussing, direction, centering]
2 maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus"
3 maximum clarity or distinctness of an idea; "the controversy brought clearly into focus an important difference of opinion"
4 a central point or locus of an infection in an organism; "the focus of infection" [syn: focal point, nidus]
5 special emphasis attached to something; "the stress was more on accuracy than on speed" [syn: stress]
6 a point of convergence of light (or other radiation) or a point from which it diverges [syn: focal point]
7 a fixed reference point on the concave side of a conic section


1 direct one's attention on something; "Please focus on your studies and not on your hobbies" [syn: concentrate, center, centre, pore, rivet]
2 cause to converge on or toward a central point; "Focus the light on this image" [ant: blur]
3 bring into focus or alignment; to converge or cause to converge; of ideas or emotions [syn: concenter, concentre, focalize, focalise]
4 become focussed or come into focus; "The light focused" [syn: focalize, focalise] [ant: blur]
5 put (an image) into focus; "Please focus the image; we cannot enjoy the movie" [syn: focalize, focalise, sharpen] [ant: blur] [also: foci (pl)]foci See focus

User Contributed Dictionary


  • a UK /ˈfəʊ.kaɪ/ /"f@U.kaI/


  1. Plural of focus



hu-noun k




  1. Plural of foce

Extensive Definition

Foci may refer to:
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