Medical Terminology & Phrases

Medical Terms O

Oat cell cancer
Oath of Maimonides
OB
OB/GYN
Obese
Obesity
Obesity, endogenous
Obesity, exogenous
Obesity, gynecoid
Obesity-related diseases
Objective
Observer variation
Obsessive-compulsive disorder (OCD)
Obstetrical forceps
Obstetrician
Obstetrician/gynecologist
Obstetrics
Obstruction, airway
Obstructive sleep apnea
Obtunded
Occipital bone
Occiput
Occular
Occult
Occupational Safety & Health, Nat'l Institute for
Occupational therapist
OCD (Obsessive-compulsive disorder)
OCD (osteochondritis dissecans)
Ocean itch
OCP
OCPD
Ocular
Ocular conjunctiva
Oculomotor nerve
Oesophagus
Off-label use
Offspring
Ointment
Olecranon
Olfaction
Olfactory nerve
Oligo- (prefix)
Oligodactyly
Oligodendrocyte
Oligodendroglioma
Oligohydramnios
Oligomenorrhea
Oligonucleotide
Oligospermia
Oliguria
Ollier disease
Omega-3 fatty acids
Omentum
Ommaya reservoir
Omphalo- (combining form)
Omphalocele
Omphalos
OMS
Onchocerciasis
Oncogene
Oncologist
Ondine's curse
Oneself, fear of
Onycho- (prefix)
Onychodystrophy
Onycholysis
Onychomycosis
Onychomycosis, proximal white subungual
Onychoosteodysplasia
Oocyte
Oogonium
Oophorectomy
Oophoritis
Open charting
Open fracture
Open reading frame
Open wound
Opening, vaginal
Operating room
Operation
Operation, Blalock-Taussig
Operation, Macewen
Ophthalmia
Ophthalmic
Ophthalmic artery
Ophthalmic migraine
Ophthalmic veins
Ophthalmitis
Ophthalmologist
Ophthalmology
Ophthalmopathy
Ophthalmoscope
Opiate
Opioid
Opium
Opportunistic condition
Opportunistic infection
Opportunistic microorganism
Optic
Optic cup
Optic disc
Optic nerve
Optic nerve head
Optic nerve pathways
Optic neuroma
Optician
Optometrist
OR (abbreviation)
Oral
Oral cancer
Oral candidiasis
Oral contraceptive
Oral contraceptive, combined
Oral glucose tolerance test
Oral moniliasis
Oral rehydration therapy
Oral surgeon
Oral-motor
Orbit
Orbital
Orbital fracture
Orbital ridge
Orchiectomy
Orchiopexy
Orchitis
Organic
Organic brain syndrome
Organic dust toxic syndrome
Organisation Mondiale de la Sante
Organotherapy
Organs of reproduction, female
Orgasm
Oriental medicine (traditional)
Orientation, anatomic terms of
Orifice
Ornithine transcarbamylase (OTC) deficiency
Ornithophobia
Oromandibular dystonia
Oropharynx
Orphan disease
Orphan drug
Ortho- (prefix)
Orthodontic treatment (dental braces)
Orthodontics
Orthopaedics
Orthopaedist
Orthopedics
Orthopedist
Orthopnea
Orthopod
Orthoscopic
Orthosis, thoracolumbosacral (TLSO)
Orthostatic hypotension
Os sacrum
Oscitation
Osgood-Schlatter disease
Osler-Rendu-Weber syndrome
Osler’s nodes
Osseous
Ossicle
Ossification
Ossify
Osteitis
Osteitis deformans
Osteitis fibrosa cystica
Osteo- (prefix)
Osteoarthritis
Osteoblastoma
Osteochondritis dissecans
Osteochondroma
Osteochondromatosis
Osteochondromatosis, synovial
Osteochondrosis
Osteoclasia
Osteoclasis
Osteoclast
Osteoclastoma
Osteocyte
Osteodystrophy
Osteodystrophy, renal
Osteogenesis
Osteogenesis imperfecta
Osteogenesis imperfecta congenita
Osteogenesis imperfecta tarda
Osteogenesis imperfecta type I
Osteogenesis imperfecta type II
Osteogenesis imperfecta with blue sclerae
Osteogenesis, electrically stimulated
Osteoid osteoma
Osteomalacia
Osteomyelitis
Osteonecrosis
Osteopath
Osteopathy
Osteopenia
Osteopetrosis
Osteoporosis
Osteosarcoma
Osteosynthesis
Osteotomy
Osteotomy, block
Osteotomy, cuneiform
Osteotomy, displacement
Ostomy
OTC (over-the-counter)
Otic barotrauma
Otitis
Otitis externa
Otitis interna
Otitis media, acute
Oto- (prefix)
Otolaryngologist
Otology
Otopharygeal tube
Otoplasty
Otoscope
Ounce
Outer ear
Outpatient
Output, cardiac
Ova
Ovarian cancer
Ovarian cancer test (CA 125)
Ovarian cysts
Ovarian pregnancy
Ovarian teratoma
Ovary
Ovary cyst, follicular
Ovary, dermoid cyst of the
Over-the-counter (OTC) drug
Overgrowth
Overgrowth syndromes
Overload, iron
Overweight
Ovulation
Ovum
Oxygen
Oxygen mask
Oxygen tent
Oxygenate
Oxygenation
Oxyhemoglobin
Oxymetholone
Oxytocin
Oxyuris
oz.

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