(superl.) Having no real substance, value, or importance; empty; void; worthless; unsatisfying.
(superl.) Destitute of forge or efficacy; effecting no purpose; fruitless; ineffectual; as, vain toil; a vain attempt.
(superl.) Proud of petty things, or of trifling attainments; having a high opinion of one's own accomplishments with slight reason; conceited; puffed up; inflated.
(superl.) Showy; ostentatious.
(n.) Vanity; emptiness; -- now used only in the phrase in vain.
Example Sentences:
(1) For example, if we purchase new examination equipment without any consideration or if we decide what type of equipment to introduce according to the common advice of the purchase committee of the hospital or the medical school, then we cannot design an ideal system of laboratory examinations and are forced to invest a large sum of money in vain.
(2) The George Bush campaign juggernaut hit the first serious pothole of its cash-fuelled drive to the presidency yesterday, as the Texas governor tried in vain to fend off questions about whether he had used cocaine as a young man.
(3) Full set list, show one (thanks to princevault.com ) Take Me With U (acoustic) Raspberry Beret (acoustic) U Got The Look (acoustic) Instrumental jam (acoustic) Train In Vain (acoustic) Q & A (1) incl.
(4) VaIN rarely is an isolated lesion and frequently is preceded by, or coexists with, other types of premalignant genital squamous neoplasia.
(5) He’s the kind of self-styled intellectual journalist in politics who caused so much trouble in 20th century politics, not a bad man, decent enough in his way, but not as smart as he thinks he is, vain with it.
(6) For long spells, West Ham searched in vain for inspiration as they tried to find a way past Newcastle United’s defence and end a run of three matches without a win.
(7) Further, in a vain attempt for a boost in the Hoosier State, Cruz unveiled former rival Carly Fiorina as his running mate if he receives the nomination and was able to cajole the state’s sitting governor, Mike Pence, into an endorsement.
(8) The next few days may well determine whether, this time, such loyalty will be in vain; but, while yearning for a clarion call and what was described as "vision" in this paper's leading article yesterday, I need to pose some pretty stark questions to Guardian readers.
(9) He aims to put his newspapers, including the Times and the Sun, behind a paywall, something described by the co-founder of Twitter, Biz Stone, as a vain attempt to "put the genie back in the bottle".
(10) In vain I argued that Robin Day seemed to wear the same jacket and shirt every week, and fled back to radio."
(11) Now I can feel that my son's blood wasn't totally lost in vain.
(12) In vain will Cameron plead that blame should lie with Brown and his Labour colleagues.
(13) At a media day held to mark the completion of the training and arranged before the tragedy, soldier after soldier came forward to insist that, though they were apprehensive, they were determined to do a good job, partly to make sure that their six colleagues had not died in vain.
(14) He somehow scrambled to deuce and delighted in forcing Dimitrov to chase in vain from one side of the court to the other to go 6-5 up.
(15) Assessment of patients between 9 and 99 (mean 55) months after partial colpectomy for VAIN showed no recurrence of disease in ten patients (83%).
(16) The scientific establishment struggled in vain to produce evidence that would reassure the public.
(17) No grieving wants to go through that, and our city doesn’t want to go through that.” Murphy said an accelerated program to equip Baltimore police officers with body cameras would mean Gray “did not die in vain”.
(18) His mother has said she tried in vain to get help for him.
(19) But he flailed in vain as the police officers grabbed him, one forcing his T-shirt roughly up over his head as three or four others laid in with their wooden batons, dragging and pushing him to a line of waiting Land Cruisers and more helmeted cops.
(20) As Steve spends half his money trying in vain to keep a scowl off Michelle's face and the rest comfort eating, Liz stumped up half the cash.
Vane
Definition:
(n.) A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely.
(n.) Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc.
(n.) The rhachis and web of a feather taken together.
(n.) One of the sights of a compass, quadrant, etc.
Example Sentences:
(1) One significant concern involves the rotary vane aspirators used to provide the suction required for the procedure.
(2) Indicators for use of variable-width multi-vane electron arc collimators include the following: (1) Mechanical constraints of the therapy equipment may limit the placement of isocenter to an inadequate depth which causes large variation in the SSD around the arc; (2) Out of the central plane, the shape of the chest wall may change dramatically across the limits of the arc, creating large variations in the dose distribution; (3) Clinical definition of the treatment surface to include surgical scars or other at-risk volume may create an irregularly shaped treatment surface, thereby changing the fraction of the arc included in the treatment surface from one plane to the next.
(3) The appendages consist of a delicate bilateral vane 2 mum wide on either side of the axis, composed of extremely fine overlapping or interwoven fibrils.
(4) As a result, they presented such symptoms as abnormality in the vane of remiges, undergrowth, anemia, and leg paralysis.
(5) Experimental studies also showed that the vanes of the bolt (arrow) may be a source of trace material found in the wound.
(6) Biologically active substances circulating in the blood after administration of noradrenaline (NA) into the left lateral brain ventricle of the dog were detected using the blood bathed organ technique of Vane.
(7) Innovative techniques in motion control technology have been applied to the design and implementation of a portable computer-controlled multi-vane collimator for use in electron arc therapy.
(8) In the first animal experiment using nonoptimized vanes, there was no thrombus at the back plane or the seal, and only a small thrombus at the transition between axle and rotor.
(9) Both mathematic computation of velocity distribution in the impeller and geometric illustration of the velocity triangle at the top of the vane have demonstrated that the peripheral velocity variation of blood cells in a twisted impeller will be less than that in an untwisted impeller.
(10) His father, Samuel, was a lay preacher and art metal worker, who designed a weather-vane for one of the civic buildings in Blackpool.
(11) The background was either a static homogeneous disk, a flickered homogeneous disk, a static radially-vaned disk, or a rotating vaned disk, all of equivalent space- and time-averaged luminance.
(12) Rabbit aortic strips were arranged in a Vane's cascade and superfused with Krebs buffer which contained phenylephrine hydrochloride (100 nM) and indomethacin (5 microM).
(13) The key to the question is to design a three-dimensional impeller with twisted vanes, compacted by an axial helical spiral and a radial logarithmic spiral so as to reduce the turbulent shear in the pump as the impeller changes its rotations per minute periodically to generate a physiologic pulsatile flow.
(14) Vane's hypothesis is supported by this study of PG induced experimental arthritis.
(15) With adequate dosage, there may even be a slight increase in diastolic pressure, an effect eventually vaning in chronic therapy.
(16) The coronary effluent was continuously bioassayed for prostaglandin-like substances (PLS) using the cascade technique of Vane.
(17) His weather vane politics are not in the national interest.
(18) To reduce the effects of backstreaming oil from the vacuum system, a turbomolecular pump backed by a two-stage rotary vane pump was connected to the drying-coating chamber.
(19) Vanee Vines, an NSA spokeswoman, declined to comment on Monday on the Wyden-Udall letter.
(20) The effect of such vanes was studied in videographic and ultrasound studies.