Orfoepiya (yunoni orphoepeia ae or­thos — durust va epos — nutq, sukhan), majmui qoidahoi talaffuzi adabii yagon zaboni milliro guyand, ki yagonagii sokhti ovozii onro tamin mekunad. Qoidahoi talaffuzi zaboni adabi yakjoya bo normahoi lek­siki, grammatiki, fonetiki, uslubi, imloi va gayra mubodilai afkorro bay­ni namoyandogoni shevahoi mukhtalif osontar mekunand. Qoidahoi …

Orleani Nav (New Orleans), shahrest dar janubi Shtathoi Muttahidai Amerika, dar shtati Luiziana. Yake az bandarhoi kalontarini mamlakat dar sohili chapi daryoi Missisipi va nazdi khaliji Meksi­ka. Uzeli kaloni rohi ohan, markazi mu­himmi moliya va tijorat (pakhta, galla, qand va gayra). Aeroport dorad. Aho­liash 570 hazor nafar (ziyoda az ‘/4 …

Orkhit (az yunoni orchis — khoya), iltihobi khoyai odam. Aksar vaqt chun bodi bemorihoi siroyati (khanozir, gripp, suzok, tif, brusellyoz, sil va gayra) va latkhurii khoya ba vujud meoyad. Bemori tez cap meshavad (harorat baland va khoya kalon shuda, sakht dard mekunad). Orkhit odatan badi 2—3 haf­ta khomush megardad, bazan …

Orlova Lyubov Petrovna (11. 2. 1902, Zvenigorod, hozira viloyati Mosk­va — 27. 1. 1975, Moskva) aktrisai sovetii rus, Artisti Khalqii SSSR (1950). Dar Kon­servatoriya (1919 —22) va tekhnikumi teatrii Mosk­va (qismi khoreografi; 1922—25) tahsil namudaast. Solhoi 1926—33 dar Teatri musiqii ba nomi V. I. Ne­mirovich-Danchenko kor kardaast. Faoliyati ejodii akt­risa …

Orkhus (Arhus), shahr va bandarest dar Daniya, dar sharqi nimjazirai Yut­landiya, dar sohili khaliji Orkhus-Bugt. Markazi mamurii amti Orkhus. Aholiash 246 hazor nafar (1974). Uzeli rohi ohan, markazi savdoyu sanoat va madaniyat. Makhsusan sanoati moshinsozi (tajhizot, yakhdonho), istehsoli mahsuloti neft, sanoati khimiya, bofandagi, khurokvori rivoj yoftaast. Universitet (az 1928), Maktabi …

Ornitozho (az yunoni ornis, ornithos — parranda), yak guruhi bemorihoi virusii parranda va odamro guyand. Ornitozho avvalin bor soli 1875 ilman qalamdod shudaast. Siroyati Ornitozho dar beshtar az 130 namudi parrandaho muqarrar karda shudaast, ki in ba «ornitoz» nomidani bemori vodor namud. Angezandai Ornitozho virusest, ki az najosat va luobi …

Orsha, shahrest dar viloyati Vitebski Respublikai Sovetii Sotsialistii Bulgoriya, dar sohili daryoi Dnepr. Uzeli kaloni rokhi ohan.  Az Orsha avtomagistrali Leningrad — Kiev meguzarad. Aholiash 112 hazor nafar (1979). Kombinati katon, fabrikahoi trikotaj, duzandagi,_zavodhoi dastgohsozi, moshinhoi darzduzi, asbobsozi, silikat, konstruksiyahoi ohanu betoni, korkhonahoi sanoati khurokvori (kombinati gushtu konserv, zavodhoi panir, …

Ornitologiya (az yunoni ornis, ognithos—parranda va … logiya), yak sohai zoologiya ast, ki embriologiya, morfologiya, fiziologiya, ekologiya, sistematika va taqsimoti geografii parrandahoro meomuzad. Nakhustin asar oid ba Ornitologiya— «Tarikhi hayvonot» ba qalami Arastu (asri 4 to milod) taalluq dorad. U dar asarash dar borai 170 namudi parranda malumot dodaast. Asosi …

Ori Saidahmad ibni Shohabduradim (1884—1918, Qalaikhum), shoiri tojik. Dar Darvoz ba dunyo omada, hamon jo kasbi kamol kardaast. Dar sheru shoiri shavqu zavqi ziyode doshta, sherhoyash dar bayni khalq mamulu maqbul gashtaand. Ashori Ori dar bayozu majmuahoi qa­lami darj gardidaand.

Ornitokhoriya (az yunoni ornithos— parranda va choreo — meravam, pahn meshavam), tavassuti parrandaho pahn shudani meva va tukhmi rastanihost. Yak juzi zookhoriya. Parrandaho meva va tukhmi rastanihoro bo changol yo nuli khud burda, dar surokhii kundaho, zeri khasu shibbahoi lonan khud va gayra pinhon va zakhira menamoyand. Tukhmi rastaniho dar …