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KEY

Combining Form

= combining form

Dangerous Abbreviation

= dangerous abbreviation

origin of replication

orizaba jalap root

Ornish prevention diets

Ornish reversal diet

ornithine acetyltransferase

ornithine carbamoyltransferase

ornithine cycle

ornithine decarboxylase

ornithine transaminase

ornithine transcarbamoylase

ornithineδ-aminotransferase

Ornithodoros coriaceus

Ornithodoros erraticus

Ornithodoros hermsi

Ornithodoros lahorensis

Ornithodoros moubata complex

Ornithodoros pappilipes

Ornithodoros parkeri

Ornithodoros rudis

Ornithodoros savigni

Ornithodoros talajé

Ornithodoros tholozani

Ornithodoros turicata

Ornithodoros venezuelensis

Ornithodoros verrucosus

Ornithonyssus

ornithosis virus

oro- Combining Form

oroantral fistula

orodigitofacial

orodigitofacial dysostosis

orofacial fistula

orofaciodigital syndrome

orogastric hose

oronasal fistula

oronasal membrane

oropharyngeal isthmus

oropharyngeal membrane

oropharyngeal passage

Oropouche fever

orotate phosphoribosyltransferase

orotic aciduria

orotidine 5′-monophosphate

orotidylic acid

orotidylic acid decarboxylase

orotidylic acid phosphorylase

orotidylic acid pyrophosphorylase

orotracheal intubation

orotracheal tube

orphan nuclear receptor

orphan products

orphan receptor

-orrhagia Combining Form

-orrhea Combining Form

-orrhexis Combining Form

orrho- Combining Form

Orsi-Grocco method

orth- Combining Form

ortho- Combining Form

orthochromophil

orthodontic and dentofacial orthopedics

orthodontic appliance

orthodontic band

orthodontic elastic

orthodontic space maintainer

orthodontic therapy

orthoglycemic glycosuria

orthognathic surgery

orthogonal radiographs

orthograde conduction

orthograde degeneration

orthokeratology

orthomechanical

orthomechanotherapy

orthomolecular medicine

orthomolecular psychiatry

orthomolecular therapy

Orthomyxoviridae

orthopaedic surgery

orthopantomography

orthopedic appliance

orthopedic surgery

orthopercussion

orthophosphoric acid

orthopnea position

orthopneic position

Orthopoxvirus

orthoprosthesis

orthopsychiatry

Orthoreovirus

orthoscopic lens

orthoscopic spectacles

orthostatic albuminuria

orthostatic congestion

orthostatic deconditioning

orthostatic hypopiesis

orthostatic hypotension

orthostatic intolerance

orthostatic proteinuria

orthostatic tachycardia

orthostereoscope

orthotopic graft

orthotopic neobladder bladder

orthotopic ureterocele

Ortolani maneuver

OS Dangerous Abbreviation

os centrale tarsi

os cuneiforme intermedium

os cuneiforme laterale

os cuneiforme mediale

os intermaxillare

os intermetatarseum

os interparietale

os multangulum majus

os multangulum minus

os naviculare manus

os premaxillare

os pterygoideum

os tibiale posterius

os trapezoideum