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: 7 Search : complement
complement
  اسپران   
osporân

Fr.: complément   

1) Math., logic: With reference to any set A, conceived as a subset of some larger set U, all the elements of U that are not contained in A.
2) Optics: A complementary color that, when combined to another, creates neutral gray.

From O.Fr. complement, from L. complementum "that which fills up or completes," from complere "fill up," → complete.

Osporân, from ospor present tense stem of osporidan "to → complete."

complementarity
  اسپرندگی   
osporandegi

Fr.: complémentarité   

The state or quality of being → complementary.

From → complementary + → -ity.

From osporandé, → complementary, + -gi, same as -i noun suffix.

complementarity principle
  پروز ِ اسپرندگی   
parvaz-e osporandegi

Fr.: principe de complémentarité   

Physical principle, put forward by Niels Bohr in 1928, that a complete knowledge of phenomena on atomic dimensions requires a description of both wave and particle properties.

complementarity; → principle.

complementary
  اسپرنده   
osporandé

Fr.: complémentaire   

Forming or serving as a complement; completing.

From → complement.

complementary angle
  زاویه‌ی ِ اسپرنده   
zâviyé-ye osporandé

Fr.: angle complémentaire   

Any angle that when added to another one creates a 90° angle.

complementary; → angle.

complementary apertures
  دهانه‌های ِ اسپرنده   
dahânehâ-ye osporandé

Fr.: ouvertures complémentaires   

Same as → complementary screens.

complementary; → aperture.

complementary screens
  پرده‌های ِ اسپرنده   
pardehâ-ye osporandé

Fr.: écrans complémentaires   

Two apertures where opaque and transparent areas are inverted. If A is an aperture that has some opaque areas and some transparent ones, the complementary pattern A' is the pattern in which exactly the opposite areas are opaque and transparent. Thus, the complimentary screen of a single slit is a wire of the same size, and the complementary screen of a circular opening is a dot. A better term would be → complementary apertures.

complementary; → screen.