释义 |
focal point
focal point n 1. (General Physics) Also called: principal focus or 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 2. a central point of attention or interest fo′cal point` n. 1. either of two points on the axis of a mirror, lens, or other optical system, on which rays converge or from which they deviate. 2. the center of activity or attention. 3. the central or principal point of focus. [1705–15] ThesaurusNoun | 1. | focal point - a point of convergence of light (or other radiation) or a point from which it divergesfocuspoint - the precise location of something; a spatially limited location; "she walked to a point where she could survey the whole street" | | 2. | focal point - a central point or locus of an infection in an organism; "the focus of infection"nidus, focuspoint - the precise location of something; a spatially limited location; "she walked to a point where she could survey the whole street"focal infection - bacterial infection limited to a specific organ or region especially one causing symptoms elsewhere | | 3. | focal point - the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life"centering, focus, focusing, focussing, directionengrossment, immersion, absorption, concentration - complete attention; intense mental effortparticularism - a focus on something particular | Translationsfocal point
focal point 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 focal point (focus) See focal length.focal point[′fō·kəl ‚pȯint] (optics) The point to which rays that are initially parallel to the axis of a lens, mirror, or other optical system are converged or from which they appear to diverge. Also known as principal focus. focal point
an·te·ri·or fo·cal pointthe point where parallel rays from the retina are focused.an·te·ri·or fo·cal point (an-tēr'ē-ŏr fō'kăl poynt) The point where parallel rays from the retina are focused.
pos·te·ri·or fo·cal point (pos-tēr'ē-ŏr fō'kăl poynt) The point of a compound optic system where parallel rays entering the system are focused. focal pointThe point at which a group of light rays converge.See also: pointLegalSeePointFinancialSeefocusfocal point
Synonyms for focal pointnoun a point of convergence of light (or other radiation) or a point from which it divergesSynonymsRelated Wordsnoun a central point or locus of an infection in an organismSynonymsRelated Wordsnoun the concentration of attention or energy on somethingSynonyms- centering
- focus
- focusing
- focussing
- direction
Related Words- engrossment
- immersion
- absorption
- concentration
- particularism
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