Nouns

orrery

noun

planetarium consisting of an apparatus that illustrates the...

orthicon

noun

a now obsolete picture pickup tube in a television camera; e...

orthodontia

noun

the branch of dentistry dealing with the prevention or corre...

orthoclase

noun

a white or colored monoclinic feldspar

orthoepy

noun

the way a word or a language is customarily spoken

orthogonality

noun

the relation of opposition between things at right angles

orthopteran

noun

any of various insects having leathery forewings and membran...

orthopnea

noun

form of dyspnea in which the person can breathe comfortably...

orthopteron

noun

any of various insects having leathery forewings and membran...

orthoptics

noun

treatment of defects of binocular vision (such as strabismus...

ortolan

noun

brownish Old World bunting often eaten as a delicacy

oscan

noun

an extinct Italic language of ancient southern Italy

oscillogram

noun

the recording produced by an oscillograph

oscillograph

noun

a device for making a record of the wave forms of fluctuatin...

oscine

noun

passerine bird having specialized vocal apparatus

osier

noun

any of various willows having pliable twigs used in basketry...

osmanli

noun

a Turk (especially a Turk who is a member of the tribe of Os...

osmium

noun

a hard brittle blue-grey or blue-black metallic element that...

osmund

noun

any fern of the genus Osmunda: large ferns with creeping rhi...

ossete

noun

a northeastern Iranian language spoken in Russia

ossicle

noun

a small bone; especially one in the middle ear

osteichthyes

noun

a class of fish having a skeleton composed of bone in additi...

ostensorium

noun

(Roman Catholic Church) a vessel (usually of gold or silver)...

osteoblast

noun

a cell from which bone develops

osteoclast

noun

cell that functions in the breakdown and resorption of bone...

osteitis

noun

inflammation of a bone as a consequence of infection or trau...

osteoclasis

noun

treatment of a skeletal deformity by intentionally fracturin...

osteoma

noun

a slow growing benign tumor of consisting of bone tissue; us...

osteomalacia

noun

abnormal softening of bones caused by deficiencies of phosph...

osteopathy

noun

therapy based on the assumption that restoring health is bes...

osteophyte

noun

small abnormal bony outgrowth

osteopathist

noun

a therapist who manipulates the skeleton and muscles

ostiary

noun

someone who guards an entrance

ostiole

noun

a small pore especially one in the reproductive bodies of ce...

osteotomy

noun

surgical sectioning of bone

ostler

noun

someone employed in a stable to take care of the horses

ostracoderm

noun

extinct fish-like jawless vertebrate having a heavily armore...

ostracod

noun

tiny marine and freshwater crustaceans with a shrimp-like bo...

ostwald

noun

German chemist (1853-1932)

ostrogoth

noun

a member of the eastern group of Goths who created a kingdom...

otalgia

noun

an ache localized in the middle or inner ear

otitis

noun

inflammation of the ear

otology

noun

the branch of medicine concerned with the ear

otoplasty

noun

reconstructive surgery of the auricle of the external ear

otosclerosis

noun

hereditary disorder in which ossification of the labyrinth o...

otorhinolaryngology

noun

the medical specialty that deals with diseases of the ear, n...

otoscope

noun

medical instrument consisting of a magnifying lens and light...

ottumwa

noun

a town in southeast Iowa

ouachita

noun

a river that rises in western Arkansas and flows southeast i...

oubliette

noun

a dungeon with the only entrance or exit being a trap door i...