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In radiotherapy, a percentage depth dose curve (PDD) (sometimes percent depth dose curve) relates the absorbed dose deposited by a radiation beam into a medium as it varies with depth along the axis of the beam. The dose values are divided by the maximum dose, referred to as d max, yielding a
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.
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
Meaning Origin language and etymology Example(s) juxta-near to, alongside, or next to Latin iuxta: juxtaglomerular apparatus: kal-potassium: New Latin kalium, potassium hyperkalemia: kary-[3] nucleus Greek κάρυον (káruon), nut eukaryote: kerat-[4] cornea (eye or skin) Greek κέρας (kéras), horn keratoscope: kine-[5] movement
Piezoelectric direct discharge (PDD) plasma is a type of cold non-equilibrium plasma, generated by a direct gas discharge of a high voltage piezoelectric transformer.It can be ignited in air or other gases in a wide range of pressures, including atmospheric.
PDD Pervasive developmental disorder: PDD-NOS Pervasive developmental disorder, not otherwise specified: PDD/NOS Pervasive developmental disorder, not otherwise specified: PDS Pokkuri Death Syndrome PE Pulmonary embolism: PKAN Panthothenate kinase-associated neurodegeneration: PLMD Periodic limb movement disorder: PLS Primary lateral sclerosis: PMD
Pinduoduo, NASDAQ ticker PDD; Project Design Document, a precise project description which serves as the basis for the Clean Development Mechanism (CDM) (project evaluation) Public Domain Day, an observance of when copyrights expire and works enter into the public domain
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").