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.
1) A large, usually flat surface onto which an image is projected for
M.E. screne; O.Fr. escren "a screen against heat," from M.Du. scherm "screen, cover," or Frank. *skrank "barrier;" cf. O.H.G. skirm, skerm "protection," scrank "barrier;" Ger. Schrank "cupboard."
Pardé, from Mid.Pers. pardag "curtain, veil, covering;" loaned in Armenian partak "veil," and Georgian p'ardag-i "curtain;" cognate with Gk. pelas, pella, L. pellis "skin;" O.E. filmen "thin skin;" PIE root *pel- "to cover."
Fr.: fonte d'écran
screened Coulomb interaction
andaržireš-e bâparde-ye Coulomb
Fr.: interaction de Coulomb écrantée
Fr.: effet d'écran
Same as → shielding effect.