What's the difference between dilation and expansion?

Dilation


Definition:

  • (n.) Delay.
  • (n.) The act of dilating, or the state of being dilated; expansion; dilatation.

Example Sentences:

  • (1) Intestinal dilatation seemed in all cases a response to elevated CO2 only.
  • (2) In the absence of atrial dilatation there was minimal stimulus for ANF secretion.
  • (3) Evaluation revealed tricuspid insufficiency, a massively dilated right internal jugular vein, and obstruction of the left internal jugular vein.
  • (4) Midtrimester abortion by the dilatation and evacuation (D&E) method has generated controversy among health care providers; many authorities insist that this procedure should be performed only by a small group of experts.
  • (5) DPI 201-106 (DPI) as a positive inotropic drug might be useful in treating dilated cardiomyopathy (DCM).
  • (6) In one of the cirrhotic patients, postmortem correlation of sonographic, angiographic, and pathological findings showed that the dilated vessels seen on sonography were cystic veins draining normally into the portal vein rather than portosystemic anastomoses.
  • (7) Combined SEM and TEM examination of the endothelium of compressed segments revealed "craters" and "balloons", blebs and vacuoles, swollen mitochondria, dilated granular endoplasmic reticulum, and subendothelial edema.
  • (8) Light microscopy of both apneics and snorers revealed mucous gland hypertrophy with ductal dilation and focal squamous metaplasia, disruption of muscle bundles by infiltrating mucous glands, focal atrophy of muscle fibers, and extensive edema of the lamina propria with vascular dilation.
  • (9) Myogenic constrictions and dilations was observed when IP was increased (greater than 60 cmH2O) and decreased (less than 60 cmH2O), respectively.
  • (10) Four hundred and twenty-five lesions were dilated in 370 patients.
  • (11) Most often, constrictor fibres follow the course of the pterygo-palatine nerve, when dilator fibres follow the infraorbital nerve.
  • (12) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
  • (13) Further management of the congenital cases was based on the experience that children outgrow this disorder; periodic dilatation may augment the natural process.
  • (14) The average size of stenosis after dilation was 32%.
  • (15) Computer-aided axial tomography revealed progressive development of atrophy of the left hemisphere and compensatory dilatation of the ventricles.
  • (16) The distinction between idiopathic dilated cardiomyopathy and myocarditis is controversial, both clinically and pathologically.
  • (17) In the remaining 60 patients (35 with atherosclerotic stenosis and 25 with fibromuscular dysplasia), both mean systolic and diastolic pressure fell immediately after percutaneous transluminal dilatation and remained significantly lower for a period of up to five years.
  • (18) The time for cervical dilatation from 7 to 10 cm and duration of the second stage of labor did not influence maternal morbidity or fetal outcome, regardless of the method of anesthesia.
  • (19) Histamine elicited arteriolar dilation which was blocked by metiamide suggesting the presence of H2 receptors.
  • (20) In 1 patient there was concomitant aneurysmal dilatation of the brachiocephalic trunk.

Expansion


Definition:

  • (n.) The act of expanding or spreading out; the condition of being expanded; dilation; enlargement.
  • (n.) That which is expanded; expanse; extend surface; as, the expansion of a sheet or of a lake; the expansion was formed of metal.
  • (n.) Space through which anything is expanded; also, pure space.
  • (n.) Enlargement or extension of business transactions; esp., increase of the circulation of bank notes.
  • (n.) The developed result of an indicated operation; as, the expansion of (a + b)2 is a2 + 2ab + b2.
  • (n.) The operation of steam in a cylinder after its communication with the boiler has been cut off, by which it continues to exert pressure upon the moving piston.
  • (n.) The enlargement of the ship mathematically from a model or drawing to the full or building size, in the process of construction.

Example Sentences:

  • (1) Surprisingly, the clonal elimination of V beta 6+ cells is preceded by marked expansion of these cells.
  • (2) Blood flow decreased immediately after skin expansion in areas over the tissue expander on days 0 and 1 and returned to baseline levels within 24 hours.
  • (3) Cellular radial expansion was apparently unaffected by exposure to electric fields.
  • (4) Plasma fibrinogen decreased by approximately 7% due to hemodilution caused by plasma volume expansion.
  • (5) To augment the in vitro expansion of LAK cells, we added highly purified human recombinant interleukin-2, phytohemagglutinin and accessory cells (Uc cells) to the LAK culture system, with which huge number of LAK cells (LAK-L) were generated from originally small number of peripheral blood lymphocytes of cancer patients.
  • (6) This was accompanied by a greater decrease in hematocrit in the continuous group, a finding that suggests that plasma volume expansion occurred during continuous GTN therapy.
  • (7) Expansion of the cell sheet following attachment, and the fusion of epiblasts advancing toward each other, does not require the presence of mineralocorticoid.
  • (8) Opsin becomes incorporated into the disk membrane by a process of membrane expansion and fusion to form the flattened disks of the outer segment.
  • (9) Unlike previous studies where constitutive expression of exogenous IL-6 genes resulted in lymphoproliferative disorders characterized by massive plasmacytosis, minimal plasma cell expansion occurred in the MSCV-IL-6 mice during the observation period.
  • (10) The hyperreninemia and hyperaldosteronism were both suppressible with volume expansion.
  • (11) In a clear water reservoir built in ready construction after a working-period of five months quite a lot of slime could be found on the expansion joint filled with tightening compound on the base of Thiokol.
  • (12) For a union that, in less than 25 years, has had to cope with the end of the cold war, the expansion from 12 to 28 members, the struggle to create a single currency and, most recently, the eurozone crisis, such a claim risks accusations of hyperbole.
  • (13) The former Arsenal and France star has signed a three-year contract to replace the sacked Jason Kreis at the helm of the second-year expansion club and will take over on 1 January, the team said.
  • (14) In order to delineate the critical blood flow pattern during the Cushing response in intracranial hypertension, regional cerebral blood flow was measured with radioactive microspheres in 12 anesthetized dogs at respiratory arrest caused either by expansion of an epidural supratentorial balloon or by cisternal infusion.
  • (15) This enhancement of laminin synthesis corresponds to the mesangial expansion and to the development of laminin-containing spike formations of the glomerular basement membrane at week 8.
  • (16) This study focuses on the expansion and maturation of the fatty streak in the aorta of Watanabe Heritable Hyperlipemic rabbits and comparably hypercholesterolemic fat-fed rabbits between 2 and 6 months duration of hypercholesterolemia.
  • (17) It is spending £68m this year to help meet this target, including further investment in its China start-up, expansion of its main UK warehouse in Barnsley, and new facilities in Berlin and Shanghai, and expansion of a warehouse in Ohio.
  • (18) 2) Trebling of alcohol treatment places to match the expansion in drug treatment, and US-style street pastor teams using vetted ex-offenders to reach disaffected young people.
  • (19) The expansion comes hot on the heels of another year of stellar growth in which Primark edged closer to overtaking high street stalwart M&S in sales and profits.
  • (20) Subacute lead exposure has been observed to inhibit the natriuretic response to isotonic saline expansion in adult female rats.