An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

1) General: A bright → burst of fire, a flame; a bright or steady light or glare.
2) Optics: The concentration of a limited region of the spectrum into any → order other than the zero order.

O.E. blæse "a torch, flame," from P.Gmc. *blason, from PIE *bhel- "to shine."

Beliz, from Lori beleyz "flame, blaze," Kordi belise "flame, blaze," Mid.Pers. brâh, Av. braz- "to shine, gleam, flash, radiate," cf. Skt. bhâ- "to shine," bhrajate "shines, glitters," O.H.G. beraht "bright," O.E. beorht "bright;" PIE *bhereg- "to shine."

The angle between the operating facet of the grooves and the overall plane of a diffraction grating.

→ blaze; → angle.

Angâl, zâviyée, → angle; beliz→ blaze.

The wavelength in a given diffraction order for which the efficiency curve reaches its maximum.

→ blaze; → wavelength.

Mowjtul→ wavelength; beliz→ blaze.

A → diffraction grating ruled appropriately so that a large proportion of the diffracted light is concentrated into a few, or even a single → order of interference.

Blazed, adj. of → blaze; → grating.

Turi, noun from tur "a net, a fishing net;" belizi adj. from beliz, → blaze.