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| fo·cus [ fṓkəss ] |
noun (plural fo·cus·es or fo·ci [ fṓ s ]) |
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| Definition: |
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1. main emphasis: concentrated effort or attention on a particular thing
  The committee's focus must be on finding solutions to the problem.
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2. (plural fo·cus·es) area of concern: an area of concern, responsibility, or investigation
an inquiry with a narrow focus
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3. concentrated quality: a concentrated and unified quality
to bring focus to the problem
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4. sharpness of image: the quality that makes an image sharply defined with clear edges and contrast
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5. sharpness of vision: the condition of seeing images sharply and clearly
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6. (plural fo·ci) optics
Same as focal point (sense 1)
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7. photog device for adjusting camera lens: a device on a camera for adjusting the lens
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8. (plural fo·ci) medicine disease origin: the point from which a disease spreads or where it localizes
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9. (plural fo·ci) geography center of earthquake or explosion: the point of origin of an earthquake or underground nuclear explosion
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10. (plural fo·ci) mathematics point on cone: a fixed point in a plane that in combination with a particular straight line specifies a conic section
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transitive and intransitive verb (past and past participle fo·cused or fo·cussed, present participle fo·cus·ing or fo·cus·sing, 3rd person present singular fo·cus·es or fo·cus·ses) |
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| Definition: |
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1. concentrate mainly on something: to concentrate effort or attention on a particular thing or a particular aspect of a thing
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2. adjust vision to see clearly: to adjust your vision so that you see clearly and sharply, or become adjusted for clear vision
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3. optics adjust lens: to adjust a lens so that the image viewed is clear and sharp
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4. optics meet at single point: to make rays of light meet at a single point, or meet at a single point
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| [Mid-17th century. < Latin, "hearth, fireplace"] |
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| fo·cus·a·ble adjective |
| fo·cus·er noun |
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