An Etymological Dictionary of Astronomy and Astrophysics
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فرهنگ ریشه شناختی اخترشناسی-اخترفیزیک

M. Heydari-Malayeri    -    Paris Observatory

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Number of Results: 6 Search : guide
autoguider
  خودراهبر، راهبر ِ خودکار   
xodrâhbar, râhbar-e xodkâr

Fr.: autoguideur   

An electronic equipment used to automatically guide a telescope during long exposures.

Autoguider from → auto- "self" + guider, from O.Fr. guider "to guide, lead, conduct," from Germanic origin; akin to O.E. wltan "to look after" witan "to know," akin to O.H.G. wizzan "to know," L. videre "to see," Gk. eidenai "to know," idein "to see," Av. vaêd- "to know," Skt. veda "knowledge; finding."

Xodrâhbar from xod-, → auto + râhbar "guide," from râh "way" + bar, from bordan "to lead."

guide
  ۱) راه‌بردن؛ ۲) راهبرد   
1) râh bordan; 2) râhbord

Fr.: 1) guider; 2) guidage   

1) To → control or direct the → motion or course of.
2) Something that directs the motion or points the way. → autoguider, → guide star, → guider, → lightguide, → waveguide.

M.E. giden (v.), from O.Fr. guider "to guide, lead," from Frankish *witan "show the way" (cf. Ger. weisen "to show, point out," wissen "to know;" O.E. witan "to see"). Cognate with Pers. bin- "to see" (present stem of didan "to see"); Mid.Pers. wyn-; O.Pers. vain- "to see;" Av. vaēn- "to see;" Skt. veda "I know;" Gk. oida "I know," idein "to see;" L. videre "to see;" PIE base *weid- "to know, to see."

Râh bordan "to guide, conduct," from râh "path, → way," + bordan "to carry, lead," → vector.

guide star
  ستاره‌ی ِ راهبرد   
setâre-ye râhbord

Fr.: étoile de guidage   

A relatively bright star conveniently located in the → field of view used for → guiding.

→ guide; → star.

guider
  دوربین ِ راهبرد   
durbin-e râhbord

Fr.: lunette guide   

Same as → guiding telescope.

lightguide
  نوربَر   
nurbar

Fr.: faisceau de fibres optiques; guide d'ondes optique   

A bundle of optical fibers arranged randomly for the purpose of transmitting energy, not an image.

→ light; → guide.

waveguide
  موج‌بر   
mowjbar (#)

Fr.: guide d'ondes   

Any transmission medium, such as a hollow metal conductor, coaxial cable, or glass fiber, capable of confining and supporting the propagation of electromagnetic waves regardless of wavelength or mode of propagation.

→ wave; guide, M.E., from O.Fr. guider "to guide, lead," from Frankish *witan "show the way," from P.Gmc. *wit- "to know" (cf. Ger. weisen "to show, point out," wissen "to know;" O.E. witan "to see"). Cognate with Pers. bin- "to see" (present stem of didan "to see"); Mid.Pers. wyn-; O.Pers. vain- "to see;" Av. vaēn- "to see;" Skt. veda "I know;" Gk. oida "I know," idein "to see;" L. videre "to see;" PIE base *weid- "to know, to see."

Mowjbar, from mowj, → wave, + -bar "carrier," from bordan "to carry, lead" (Mid.Pers. burdan, O.Pers./Av. bar- "to bear, carry," barəθre "to bear (infinitive)," Skt. bharati "he carries," Gk. pherein, L. fero "to carry;" PIE base *bher- "to carry").