| PCL | pacing cycle length; persistent corpus luteum; plasma cell leukemia; posterior chamber lens; posteri... |
|---|---|
| PD | Doctor of Pharmacy; Dublin Pharmacopoeia; interpupillary distance; Paget disease; pancreatic duct; p... |
| PICA | percutaneous transluminal coronary angioplasty; Porch Index of Communicative Abilities; posterior in... |
| PP | diphosphate group; emphysema [pink puffers]; near point of accommodation [Lat. punctum proximum]; pa... |
| PPA | palpation, percussion, auscultation; pepsin A; phenylpropanolamine; phenylpyruvic acid; Pittsburgh p... |
| occipital horn syndrome | <syndrome> An X-linked recessive disorder in which there is defective biliary excretion of copper resulting in a deficiency of lysyl oxidase causing skin and joint laxity. Ocular-mucous membrane syndrome, Stevens-Johnson syndrome with associated ocular lesions (conjunctivitis, panophthalmitis, iritis), oral lesions (bullae, erosions, superficial ulcers), and genital lesions (urethritis, balanitis circinata, blebs). (05 Mar 2000) |
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| temporal horn | The part of the lateral ventricle extending downward and forward into the medial part of the temporal lobe. See: lateral ventricle. Synonym: cornu inferius ventriculi lateralis, temporal horn. (05 Mar 2000) |
| ten Horn | C., Dutch surgeon. See: ten Horn's sign. (05 Mar 2000) |
| ten Horn's sign | <clinical sign> Pain caused by gentle traction on the right spermatic cord, indicative of appendicitis. (05 Mar 2000) |
| uterine horn | cornu uteri |
| lateral horn | The small lateral gray column of the spinal cord as appearing in transverse section containing the interomedial cell column. See: gray columns. Synonym: cornu laterale. (05 Mar 2000) |
| frontal horn | See: inferior horn of lateral ventricle, inferior horn. (05 Mar 2000) |
| lesser horn of hyoid bone | The shorter and more medial of the two processes on either side of the hyoid bone. Synonym: cornu minus ossis hyoidei, styloid cornu. (05 Mar 2000) |
| acid-base balance | The normal balance between acid and base in the blood plasma, expressed in the hydrogen ion concentration or pH, resulting from the relative amounts of acidic and basic materials ingested and produced by body metabolism, compared to the relative amounts of acidic and basic materials excreted from the body and consumed by body metabolism; the normal state of acid-base balance is not one of neutrality, with equal concentrations of hydrogen and hydroxyl ions, but a more alkaline state with a certain excess of hydroxyl ions. Synonym: acid-base equilibrium. (05 Mar 2000) |
| acid-base equilibrium | A condition in which the net rate of acid or alkali production by the body is balanced by the net rate of acid or alkali excretion from the body, resulting in a stable concentration of hydrogen ions in the body fluids. (12 Dec 1998) |
| acid-base imbalance | Disturbances in the acid-base equilibrium of the body. (12 Dec 1998) |
| acrylic resin base | A form made of acrylic resin molded to conform to the tissues of the alveolar process and used to support the teeth of a prosthesis. (05 Mar 2000) |
| aldehyde base | An obsolete term for an imide. (05 Mar 2000) |
| anterior cranial base | The portion of the internal base of the skull, anterior to the sphenoidal ridges and limbus, in which the frontal lobes of the brain rest. Synonym: fossa cranii anterior, anterior cranial base. (05 Mar 2000) |
| Bandrowski's base | <chemical> Reported cause of anaphylactic reaction. Synonym: n',n'-bis(4-aminophenyl)-2,5-diamino-1,4-quinonediimine (26 Jun 1999) |