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This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies. Most of them are combining forms in Neo-Latin and hence international scientific vocabulary. There are a few general rules about how they combine.
This is a list of abbreviations used in medical prescriptions, including hospital orders (the patient-directed part of which is referred to as sig codes).This list does not include abbreviations for pharmaceuticals or drug name suffixes such as CD, CR, ER, XT (See Time release technology § List of abbreviations for those).
differential diagnosis (the list of possible diagnoses, and the effort to narrow that list) +ve: positive (as in the result of a test) # fracture: #NOF: fracture to the neck of the femur ℞ (R with crossed tail) prescription: Ψ: psychiatry, psychosis: Σ: sigmoidoscopy: x/12: x number of months x/40: x number of weeks of pregnancy x/52: x ...
Medical terminology often uses words created using prefixes and suffixes in Latin and Ancient Greek. In medicine, their meanings, and their etymology, are informed by the language of origin. Prefixes and suffixes, primarily in Greek—but also in Latin, have a droppable -o-. Medical roots generally go together according to language: Greek ...
Pronunciation follows convention outside the medical field, in which acronyms are generally pronounced as if they were a word (JAMA, SIDS), initialisms are generally pronounced as individual letters (DNA, SSRI), and abbreviations generally use the expansion (soln. = "solution", sup. = "superior").
Past medical history (see also medical history) PSI: Pneumonia severity index: PSP: phenylsulphtalein: PSS: progressive systemic sclerosis (see scleroderma) PSVT: paroxysmal supraventricular tachycardia: PT: prothrombin time physical therapy (physiotherapy) Pt. patient (from Latin patiens, meaning "one who endures" or "one who suffers") PTA
Abbreviation Meaning s̅: without (s with an overbar) (from Latin sine) : S: sacrum: S x: symptoms surgery (though deemed by some as inappropriate) : S 1: first heart sound: S 2: second heart sound
The main discussion of these abbreviations in the context of drug prescriptions and other medical prescriptions is at List of abbreviations used in medical prescriptions. Some of these abbreviations are best not used, as marked and explained here.