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单词 focal point
释义

focal point


focal point

n. See focus.

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]
Thesaurus
Noun1.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 organismfocal 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
Translations
Brennpunkt

focal 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 point

the 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 point

The point at which a group of light rays converge.See also: point
LegalSeePointFinancialSeefocus

focal point


  • noun

Synonyms for focal point

noun a point of convergence of light (or other radiation) or a point from which it diverges

Synonyms

  • focus

Related Words

  • point

noun a central point or locus of an infection in an organism

Synonyms

  • nidus
  • focus

Related Words

  • point
  • focal infection

noun the concentration of attention or energy on something

Synonyms

  • centering
  • focus
  • focusing
  • focussing
  • direction

Related Words

  • engrossment
  • immersion
  • absorption
  • concentration
  • particularism
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更新时间:2024/12/23 13:18:34