| LRI | lamina rara interna; lower respiratory [tract] illness; lower respiratory [tract] infection; lymphoc... |
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| LRTI | lower respiratory tract illness; lower respiratory tract infection |
| MRV | minute respiratory volume; mixed respiratory vaccine |
| RI | radiation intensity; radioactive isotope; radioimmunology; recession index; recombinant inbred [stra... |
| RR | radiation reaction; radiation response; rate ratio; rational recovery [group]; recovery room; relati... |
| endocardial cushion defect | <radiology> Persistence of primitive atrioventricular canal and anomalies of AV valves associated with: Down syndrome: in 25% of Trisomy 21 an ECD is present; in 45% of ECD Trisomy 21 is present, asplenia/polysplenia types: complete (AV canal), partial findings: gooseneck deformity on angiogram, increased pulmonary vascularity, enlarged pulmonary artery, enlarged RV, LV, RA; normal LA (secondary to atrial septal defect) (12 Dec 1998) |
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| enzyme defect | A disorder resulting from a deficiency (or functional abnormality) of an enzyme. In 1902 Archibald Garrod first attributed a disease to an enzyme defect: an inborn error of metabolism. Today, newborns are routinely screened for certain enzyme defects such as PKU (phenylketonuria) and galactosaemia, an error in the handling (metabolism) of the sugar galactose. (12 Dec 1998) |
| fibrous cortical defect | A common 1 to 3 cm defect in the cortex of a bone, most commonly the lower femoral shaft of a child, filled with fibrous tissue. Nonosteogenic or nonossifying fibroma by convention refers to lesions greater than 3 cm in diameter. See: nonossifying fibroma. Synonym: nonosteogenic fibroma. (05 Mar 2000) |
| uterine filling defect | <radiology> Technical, bubble, blood clot, mucoid material, congenital fold, pseudoadhesions / ridging -- folds long axis, neoplasm, submucosal leiomyoma, adenoma, endometrial carcinoma, pregnancy-related, pregnancy, molar pregnancy, retained conceptus, polyp, septated uterus, synechiae, IUD, iatrogenic (post-op) (12 Dec 1998) |
| filling defect | Displacement of contrast medium by a space-occupying lesion in a radiographic study of a contrast-filled hollow viscus, such as a polyp on a barium enema; also applied to defects in the otherwise uniform distribution of radionuclide in an organ, such as a metastasis in the liver on a 99mTc-sulfur colloid scan. (05 Mar 2000) |
| filling defect in renal collecting system | <radiology> Common causes: transitional cell carcinoma, blood clot, lucent calculus (urate) less common causes: fungus ball, sloughed papilla, fibroepithelial polyp, invasion by hypernephroma, malakoplakia, vessel impression, metastases (12 Dec 1998) |
| lambdoid suture defect | <radiology> Well-defined lucent lesion, classically unilateral, associated with neurofibromatosis (12 Dec 1998) |
| luteal phase defect | Inadequate function of the corpus luteum that may prevent a fertilized egg from implanting in the uterus or may lead to early pregnancy loss. (09 Oct 1997) |
| amber tree | A species of Anthospermum, a shrub with evergreen leaves, which, when bruised, emit a fragrant odour. Source: Websters Dictionary (01 Mar 1998) |
| bay tree | A species of laurel. (Laurus nobilis). Source: Websters Dictionary (01 Mar 1998) |
| beam tree | <botany> A tree (Pyrus aria) related to the apple. Origin: AS. Beam a tree. See: Beam. Source: Websters Dictionary (01 Mar 1998) |
| beech tree | The beech. Source: Websters Dictionary (01 Mar 1998) |
| bo tree | <botany> The peepul tree; especially, the very ancient tree standing at Anurajahpoora in Ceylon, grown from a slip of the tree under which Gautama is said to have received the heavenly light and so to have become Buddha. "The sacred bo tree of the Buddhists (Ficus religiosa), which is planted close to every temple, and attracts almost as much veneration as the status of the god himself. . . . It differs from the banyan (Ficus Indica) by sending down no roots from its branches." (Tennent) Source: Websters Dictionary (01 Mar 1998) |
| bully tree | <botany> The name of several West Indian trees of the order Sapotaceae, as Dipholis nigra and species of Sapota and Mimusops. most of them yield a substance closely resembling gutta-percha. Source: Websters Dictionary (01 Mar 1998) |
| cabbage tree | The bark of Andira inermis, a leguminous tree of tropical America, used as an emetic, purgative, and anthelmintic. Synonym: cabbage tree, worm bark. Origin: West Indian native name (05 Mar 2000) |