(a.) Any heavy substance, as stone, iron, etc., put into the hold to sink a vessel in the water to such a depth as to prevent capsizing.
(a.) Any heavy matter put into the car of a balloon to give it steadiness.
(a.) Gravel, broken stone, etc., laid in the bed of a railroad to make it firm and solid.
(a.) The larger solids, as broken stone or gravel, used in making concrete.
(a.) Fig.: That which gives, or helps to maintain, uprightness, steadiness, and security.
(v. t.) To steady, as a vessel, by putting heavy substances in the hold.
(v. t.) To fill in, as the bed of a railroad, with gravel, stone, etc., in order to make it firm and solid.
(v. t.) To keep steady; to steady, morally.
Example Sentences:
(1) But does this imply that distomers must always be considered as detrimental ballast?
(2) For miles, only the strip of land for the track is dug up, but in places the footprint is much wider: access routes for work vehicles; holding areas for excavated earth; new electricity substations; mounds of ballast prepared for the day when quarries cannot keep pace with the demands of the construction; extra lines for the trains that will lay the track.
(3) That's likely to mean a tweak in set-up – most likely Vidal will play in more of an advanced role, with Silva adding extra ballast in behind him.
(4) They decreased the filtrate turbidity, concentration of the organic ballast, etc.
(5) The general supremacy of classical theory of balanced nutrition entailed the tendency to remove ballast substances from food products.
(6) Two years ago, on a dizzy night in Stratford where it seemed that everyone had forgotten to bring ballast, Greg Rutherford became the Olympic long jump champion .
(7) Fifteen refractive astigmats were fitted with prism ballasted and truncated plano, spherical lenses and prescription toric soft lenses.
(8) Although Mr Binnie did not take passengers, he took ballast to reproduce the weight of two passengers.
(9) There are other substances with properties that might justify their use, such as ballast preparations, some antidepressive agents, and a few compounds acting principally on the gastrointestinal tract.
(10) Reduction of fat and food without ballast reduced the excretion of oxalic acid in urine.
(11) Potentialities of electrochemical procedures were considered in simulation of liver monooxygenases functions directed to clearance of blood and tissues from toxic and ballast substances by means of hydroxylating oxidation.
(12) For instance, shoring up railways to prevent the ballast under the tracks from being swept away is a mammoth job, costing millions.
(13) As a result of a change in attitude of the regulatory authorities, however, for new drugs the choice in future between the racemic therapeutic or the single isomeric ballast-free drug will largely be based on a critical evaluation of the chiral characteristics with regard to their therapeutic, toxicological and pharmacokinetic aspects.
(14) The method to isolate protease preparations is developed with optimization of production cycles of the stabilization, vacuum-concentration, ballast protein salting-out and lyophilization stages.
(15) One of the techniques commonly used in stabilizing the rotation of a contact lens is prism ballasting.
(16) Mr Cameron may have been seeking intellectual ballast and coolness-by-association; the Oxford First ended up looking out of his depth.
(17) The summary preparation stellin along with a low antiheparin activity possessed a high toxicity explained by the content of ballast proteins of the nonprotamin nature.
(18) Therefore, from microecological-physiological aspects it is suggested to expand the term ballast matter by so-called "optional" or "potential" ballast matter (in the small intestine usually digestible but incompletely degraded nutriments) in addition to "obligatory" ballast matter (nutriments not digestible by indigene enzymes).
(19) Ultimately, the use of a Fluoroperm prism-ballasted fitting set resulted in 16 of 17 eyes (94%) seeing well with a front toric lens.
(20) The virus thus purfied retained completely its haemagglutinating activity and infectivity, and by one purification cycle at least 99% of ballast proteins were removed.
Balloon
Definition:
(n.) A bag made of silk or other light material, and filled with hydrogen gas or heated air, so as to rise and float in the atmosphere; especially, one with a car attached for aerial navigation.
(n.) A ball or globe on the top of a pillar, church, etc., as at St. Paul's, in London.
(n.) A round vessel, usually with a short neck, to hold or receive whatever is distilled; a glass vessel of a spherical form.
(n.) A bomb or shell.
(n.) A game played with a large inflated ball.
(n.) The outline inclosing words represented as coming from the mouth of a pictured figure.
(v. t.) To take up in, or as if in, a balloon.
(v. i.) To go up or voyage in a balloon.
(v. i.) To expand, or puff out, like a balloon.
Example Sentences:
(1) Technical factors that account for increased difficulty in these patients include: problems with guide catheter impaction and ostial trauma; inability to inflate the balloon with adequate guide catheter support; and need for increased intracoronary manipulation.
(2) A new balloon catheter has been developed for angioplasty.
(3) Completeness of isolation of the coronary and systemic circulations was shown by the marked difference in appearance times between the reflex hypotensive responses from catecholamine injections into the isolated coronary circulation and the direct hypertensive response from a similar injection when the circulations were connected as well as by the marked difference between the pressure pulses recorded simultaneously on both sides of the aortic balloon separating the two circulations.4.
(4) In the case presented, overdistension of a jejunostomy catheter balloon led to intestinal obstruction and pressure necrosis (of the small bowel), with subsequent abscess formation leading to death from septicemia.
(5) 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.
(6) The complex problems have been successfully managed with novel guiding catheter shapes and ultralow profile balloons.
(7) This study compares the effects of 60 minutes of ischemic arrest with profound topical hypothermia (10 dogs) on myocardial (1) blood flow and distribution (microspheres), (2) metabolism (oxygen and lactate), (3) water content (wet to dry weights), (4) compliance (intraventricular balloon), and (5) performance (isovolumetric function curves) with 180 minutes of cardiopulmonary bypass with the heart in the beating empty state (seven dogs).
(8) The hemodynamic measurements and mitral valve area calculations were performed with and without balloon occlusion of the atrial septal puncture site.
(9) The balloon was then deflated, permitting blood reperfusion.
(10) 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.
(11) Segmentally enclosed thrombolysis (SET) was undertaken immediately after PTA, when a double balloon catheter was positioned with a balloon at each end of dilated segments.
(12) 2B7 mRNA levels in both carotid and aortic artery increase with age, and are elevated approximately 5-fold in the carotid artery 48 h after balloon angioplasty.
(13) Each study consisted of a 2-h control period followed by 4 h of increased lung microvascular pressure produced by inflation of a balloon in the left atrium.
(14) Intracoronary imaging after balloon angioplasty reveals that a significant amount of atheroma is still present, which may partly explain why the incidence of restenosis is high after percutaneous transluminal coronary angioplasty.
(15) Understanding of the physiologic parameters governing blood flow to the lower extremity is clearly useful in this day of interventional balloon angioplasty.
(16) Smooth muscle cells (SMCs) in balloon-injured rat carotid artery express tissue-type plasminogen activator (t-PA) at a time when they are migrating from the media to the intima.
(17) The orientation of the dilating balloon in the inlet and outlet portions of the left ventricle, change of the catheter-dilator is controlled due to a loop of the conductor connecting the right and left parts of the heart.
(18) We describe a premature infant with progressive worsening of unilateral PIE, which was successfully treated by selective bronchial balloon catheterization after failure of conservative management.
(19) Analysed were the results of surgical treatment, causes of the failure and early recurrence in 108 patients with retinal detachment in whom was performed an indentation of the sclera by means of a balloon (1st group--50) or by an episcleral implant (2d group--58).
(20) Modified liposomes and erythrocytes were perfused in situ through segments of bovine, rabbit, or human arteries partially denuded with a balloon catheter prior to perfusion.