diyâr (#), padidâr (#), peydâ (#)
1) Capable of being seen by, or perceptible to, the human eye.
M.E., from O.Fr. visible, from L. visibilis "that may be seen," from visus, p.p. of videre "to see;" cognate with Pers. bin, present stem of didan "to see" (Mid.Pers. wyn-; O.Pers. vain- "to see;" Av. vaēn- "to see;" cf. Skt. veda "I know;" Gk. oida "I know," idein "to see;" PIE base *weid- "to know, to see").
Diyâr "visible" in several dialects, e.g. Âštiyâni, Malâyeri,
Širâzi, Tabari, related to
didan "to see;" Mid.Pers. ditan "to see, regard, catch sight of,
contemplate, experience;" O.Pers. dī- "to see;" Av. dā(y)-
"to see," didāti "sees;" cf. Skt. dhī- "to perceive,
think, ponder; thought, reflection, meditation," dādhye; Gk. dedorka
ofoq-e padidâr, ~ diyâr
Fr.: horizon apparent
That line where Earth and sky appear to meet, and the projection of this line upon the celestial sphere. Also known as the apparent horizon.
nur-e diyâr, ~ didani
Fr.: lumière visible
The portion of the → electromagnetic radiation that can be seen by the human → eye. The → wavelengths extend from about 400 nm (violet) to 750 nm (red). The wavelengths of various colors of the visible spectrum are as follows: → violet: 390-455 nm; → blue: 455-492 nm; → green: 492-577; → yellow: 577-597; → orange: 597-622; → red: 622-780 nm.
binâb-e diyâr, ~ didani
Fr.: spectre visible