| autofocus | (noun) an optical device for focussing a camera or other instrument automatically | - |
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| bifocals | (noun) (plural) eyeglasses having two focal lengths, one for near vision and the other for far vision | - |
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| focalisation | (noun) the act of bringing into focus | Synonyms: focalization, focusing |
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| (noun) the confinement of an infection to a limited area | Synonyms: focalization |
| focalization | (noun) the act of bringing into focus | Synonyms: focalisation, focusing |
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| (noun) the confinement of an infection to a limited area | Synonyms: focalisation |
| focus | (noun) maximum clarity or distinctness of an image rendered by an optical system | - |
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| (noun) maximum clarity or distinctness of an idea | - |
| (noun) the concentration of attention or energy on something | Synonyms: centering, centring, direction, focal point, focusing, focussing |
| (noun) a fixed reference point on the concave side of a conic section | - |
| (noun) a point of convergence of light (or other radiation) or a point from which it diverges | Synonyms: focal point |
| (noun) a central point or locus of an infection in an organism | Synonyms: focal point, nidus |
| (noun) special emphasis attached to something | Synonyms: stress |
| focusing | (noun) the act of bringing into focus | Synonyms: focalisation, focalization |
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| (noun) the concentration of attention or energy on something | Synonyms: centering, centring, direction, focal point, focus, focussing |
| focussing | (noun) the concentration of attention or energy on something | Synonyms: centering, centring, direction, focal point, focus, focusing |
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| refocusing | (noun) focusing again | - |
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| suffocation | (noun) killing by depriving of oxygen | Synonyms: asphyxiation |
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| (noun) the condition of being deprived of oxygen (as by having breathing stopped) | Synonyms: asphyxiation |