Old World rabbit
— Navneord
– Engelsk
~ common greyish-brown burrowing animal native to southern Europe and northern Africa but introduced elsewhere; widely domesticated and developed in various colors and for various needs; young are born naked and helpless
oligochaete worm
— Navneord
– Engelsk
~ hermaphroditic terrestrial and aquatic annelids having bristles borne singly along the length of the body
open-end wrench
— Navneord
– Engelsk
~ a wrench having parallel jaws at fixed separation (often on both ends of the handle)
Orville Wright
— Navneord
– Engelsk
~ United States aviation pioneer who (with his brother Wilbur Wright) invented the airplane (1871-1948)
order Xiphosura
— Navneord
– Engelsk
~ horseshoe crabs and extinct forms
order Xyridales
— Navneord
– Engelsk
~ an order of monocotyledonous herbs
Ortega y Gasset
— Navneord
– Engelsk
~ Spanish philosopher who advocated leadership by an intellectual elite (1883-1955)
off year
— Navneord
– Engelsk
~ a year in which no major political elections are held
off year
— Navneord
– Engelsk
~ a year in which productivity is low or inferior
onion yellow-dwarf virus
— Navneord
– Engelsk
~ the virus that produces stunting and yellowing of the leaves of onion plants
onion yellow dwarf
— Navneord
– Engelsk
~ the yellow dwarf disease of onion plants