Oregon cedar
— Noun
– English
～ large timber tree of western North America with trunk diameter to 12 feet and height to 200 feet
Oregon grape
— Noun
– English
～ small shrub with grey-green leaves and yellow flowers followed by glaucous blue berries
Oregon larch
— Noun
– English
～ tall larch of western North America have pale green sharply pointed leaves and oblong cones; an important timber tree
Oregon myrtle
— Noun
– English
～ Pacific coast tree having aromatic foliage and small umbellate flowers followed by olivelike fruit; yields a hard tough wood
Oregon crab apple
— Noun
– English
～ small tree or shrub of western United States having white blossoms and tiny yellow or red fruit
Oregon Jargon
— Noun
– English
～ a pidgin incorporating Chinook and French and English words; formerly used as a lingua franca in northwestern North America
Oregon oak
— Noun
– English
～ small deciduous tree of western North America with crooked branches and pale grey bark
oregon
— Noun
– English
～ a state in northwestern United States on the Pacific
Oregon maple
— Noun
– English
～ maple of western North America having large 5-lobed leaves orange in autumn
oregonian
— Noun
– English
～ a native or resident of Oregon
oreide
— Noun
– English
～ alloy of copper and tin and zinc; used in imitation gold jewelry
oreo cookie
— Noun
– English
～ chocolate cookie with white cream filling
oreo
— Noun
– English
～ chocolate cookie with white cream filling
Oreopteris limbosperma
— Noun
– English
～ common European mountain fern having fragrant lemon or balsam scented fronds
Oreopteris
— Noun
– English
～ 3 species of ferns formerly included in genus Dryopteris or Thelypteris
Oreortyx
— Noun
– English
～ mountain quail of western United States
orestes
— Noun
– English
～ (Greek mythology) the son of Agamemnon and Clytemnestra; his sister Electra persuaded him to avenge Agamemnon's death by killing Clytemnestra and Aegisthus
orff
— Noun
– English
～ German musician who developed a widely used system for teaching music to children (1895-1982)
organ donor
— Noun
– English
～ someone from whom an organ is taken for transplantation
organ
— Noun
– English
～ a fully differentiated structural and functional unit in an animal that is specialized for some particular function