(a.) Added extrinsically; not essentially inherent; accidental or causal; additional; supervenient; foreign.
(a.) Out of the proper or usual place; as, adventitious buds or roots.
(a.) Accidentally or sparingly spontaneous in a country or district; not fully naturalized; adventive; -- applied to foreign plants.
(a.) Acquired, as diseases; accidental.
Example Sentences:
(1) Several in vitro transcripts both larger and smaller than the authentic transcript were seen; presumably, these transcripts result from adventitious promoterlike elements in adjacent chlamydial DNA and may be responsible for the expression of the gene in E. coli.
(2) Initial acceleration of the DRL responding appeared to be due to adventitious punishment of collateral behavior which was observed between the bar-presses.
(3) These findings suggest that adventitial mast cells may potentiate atherosclerosis and vasospasm, thrombosis and premature sudden death in long-term cocaine abusers.
(4) By studying the kinetics of urease-catalyzed urea hydrolysis during application of hydrodynamic shear under varying chemical environments, we demonstrate that micromolar quantities of metal ions, in this case adventitious Fe, can accelerate the oxidation of thiol groups on urease and thus inactivate it when the protein is subjected to a shearing stress of order 1.0 Pa.
(5) A marked reduction in the area covered by adventitial cells was recorded coinciding with the early reticulocyte response to phlebotomy.
(6) The use of established genetically engineered cultures in the production of biologicals for human use requires that these cultures be monitored for adventitious viral agents.
(7) 11.30am: Those playing "Leveson bingo" with Robert Jay QC 's florid language might like to note that he has so far used the word "adventitious" .
(8) The extent of marrow sinus wall coverage by perisinal adventitial cells was measured before and after removing 25% of the calculated blood volume in rabbits.
(9) Endothelial damage reduced sensitivity and response asymmetry to luminal and adventitial adenosine.
(10) The invention in 1819 of the stethoscope by Laënnec was followed by the first classification of pulmonary adventitial sounds.
(11) The soaked embryonic shoots formed new apical buds, with or without bud scales, adventitious dwarf needles or shoots, and root- and embryo-like structures.
(12) The histological findings failed to reveal significant differences in either thoracic or abdominal aneurysms with or without marked adventitial fibrosis.
(13) The greatest amount of nerves at all stages of human development occurs in the adventitial plexuses of the thyroid arteries; they are less numerous in the plexus of the splenic artery, and their minimal amount is noted in the plexus of the brachial artery.
(14) In method 2, 72% of the balloon-denuded patent arteries with intact adventitial vasa vasorum were partially re-endothelialized at 4 weeks and 84% at 8 weeks.
(15) This uptake appears to occur primarily in the muscle layers adjacent to the lumen, suggesting that the muscle cells of the luminal side function differently from those from the adventitial side.
(16) Adventitious effects, purposeful lenticular changes and adaptations in response to environmental forces are reviewed as possible sources of this astigmatic variability.
(17) The porphyrins have two important roles in photobiology: in photosynthesis, which has evolved and is highly organized morphologically; and in the photodynamic effect, which is adventitious.
(18) Intimal hyperplasia was observed in both groups, but the grafts in the hypertensive groups showed increased adventitial and medial fibrosis and a reduced number of vasa vasora.
(19) It was found that: the average maximum residual intimal engineering strain in the uncut configuration was -0.082 for all nine aortas and -0.096 and -0.077 for the bovine and porcine aortas alone, respectively; the average maximum residual adventitial strain was 0.085 for all aortas, and 0.102 and 0.078 for the bovine and porcine aortas alone, respectively; an estimated average beneficial compressive stress of -0.188 X 10(5) Pa (corresponding to a strain level of -0.082) is available at the intimal level to counteract the in vivo tensile stress due to the intravascular pressure; an estimated average initial tensile stress of 0.195 X 10(5) Pa (corresponding to a strain level of 0.085) exists at the adventitial level which adds to the in vivo tensile stress due to the intravascular pressure.
(20) Fluorescence histochemistry shows that helicine arteries are provided with an extremely dense network of adrenergic nerves located at the medio-adventitial border.
Complication
Definition:
(n.) The act or process of complicating; the state of being complicated; intricate or confused relation of parts; entanglement; complexity.
(n.) A disease or diseases, or adventitious circumstances or conditions, coexistent with and modifying a primary disease, but not necessarily connected with it.
Example Sentences:
(1) The distribution and configuration of the experimental ruptures were similar to those usually noted as complications of human myocardial infarction.
(2) Hypothyroidism complicated by spontaneous hyperthyroidism is an interesting but rare occurrence in the spectrum of autoimmune thyroid disorders.
(3) Use of the improved operative technique contributed to reduction in number of complications.
(4) report the complications registered, in particular: lead's displacing 6.2%, run away 0.7%, marked hyperthermya 0.0%, haemorrage 0.4%, wound dehiscence 0.3%, asectic necrosis by decubitus 5%, septic necrosis 0.3%, perforation of the heart 0.2%, pulmonary embolism 0.1%.
(5) The origin of the aorta and pulmonary artery from the right ventricle is a complicated and little studied congenital cardiac malformation.
(6) There was one complication (4.8%) from PCD (pneumothorax) and no deaths in this group.
(7) Angle closure glaucoma is a well-known complication of scleral buckling and it is of particular interest when it occurs in eyes with previously normal angles.
(8) During this period he developed autoimmune haemolytic anaemia, a rare complication of myelofibrosis.
(9) In this study, standby and prophylactic patients had comparable success and major complication rates, but procedural morbidity was more frequent in prophylactic patients.
(10) Writing in the Observer , Schmidt said his company's accounts were complicated but complied with international taxation treaties that allowed it to pay most of its tax in the United States.
(11) Trismus may be a complication from local anesthesia.
(12) The course of urogenital tuberculosis is complicated by unspecific bacterial infections of the urinary tract and nephrolithiasis.
(13) Four patients died while maintained on PD; three deaths were due to complications of liver failure within the first 4 months of PD and the fourth was due to empyema after 4 years of PD.
(14) The decline in the frequency of serious complications was primarily due to a decrease in the proportion of patients with open fractures treated with plate osteosynthesis from nearly 50% to 19%.
(15) This method, which permits a more rapid formation of anastomoses, has been used to form Roux-en-Y jejunojejunostomies without extensive complications in six patients.
(16) Such complications as intracerebral haematoma or meningeal haemorrhage may occur during the usually benign course of the disease.
(17) Surgical removal was avoided without complications by detaching it with a ring stripper.
(18) The use of an absorbable material may alleviate potential late complications associated with implantation of nonabsorbable materials.
(19) The patient later died from complications of burns.
(20) The course was further complicated by administration of gentamicin, an antibiotic known to potentiate neuromuscular blocking drugs.