What's the difference between echo and sound?

Echo


Definition:

  • (n.) A sound reflected from an opposing surface and repeated to the ear of a listener; repercussion of sound; repetition of a sound.
  • (n.) Fig.: Sympathetic recognition; response; answer.
  • (n.) A wood or mountain nymph, regarded as repeating, and causing the reverberation of them.
  • (n.) A nymph, the daughter of Air and Earth, who, for love of Narcissus, pined away until nothing was left of her but her voice.
  • (v. t.) To send back (a sound); to repeat in sound; to reverberate.
  • (v. t.) To repeat with assent; to respond; to adopt.
  • (v. i.) To give an echo; to resound; to be sounded back; as, the hall echoed with acclamations.

Example Sentences:

  • (1) Type 1 changes (decreased signal intensity on T1-weighted spin-echo images and increased signal intensity on T2-weighted images) were identified in 20 patients (4%) and type 2 (increased signal intensity on T1-weighted images and isointense or slightly increased signal intensity on T2-weighted images) in 77 patients (16%).
  • (2) Streaming is shown to occur in water in the focused beams produced by a number of medical pulse-echo devices.
  • (3) That’s a criticism echoed by Democrats in the Senate, who issued a report earlier this month criticising Republicans for passing sweeping legislation in July to combat addiction , the Comprehensive Addiction and Recovery Act (Cara), but refusing to fund it.
  • (4) Sawers's views are echoed by both US and Israeli officials.
  • (5) Echocardiographic findings included an abrupt midsystolic, posterior motion (greater than 3 mm beyond the CD line) in five patients, multiple sequence echoes in six, and posterior coaptation of the mitral valve near the left atrial wall in six.
  • (6) These findings echo many of our own recent National Training Survey results , and raise concerns not just for trainees but also for patients and employers.
  • (7) A method using selective saturation pulses and gated spin-echo MRI automatically corrects for this motion and thus eliminates misregistration artifact from regional function analysis.
  • (8) Ejection fraction, %deltaD, and Vcf by LAO cineangiograms and echo were uniformly higher than corresponding measurements from RAO angio, and were often normal in the presence of other indicators of significant left ventricular dysfunction.
  • (9) A relation between ejection fraction (EF) and the echo minor dimension measurements in end diastole and end systole was formulated, which permitted estimation of the EF from the echo measurements.
  • (10) That motivation is echoed by Nicola Saunders, 25, an Edinburgh University graduate who has just been called to the bar to practise as a barrister and is tutoring Moses, an ex-convict, in maths.
  • (11) Echo delay discrimination by the bat Eptesicus fuscus had been investigated in an experiment with simulated targets jittering in range (Simmons 1979).
  • (12) These echoes, however, are not associated with acoustic shadowing.
  • (13) Protriptyline also widened the ventricular echo zone and allowed easy induction of long runs of ventricular tachycardia.
  • (14) A "visionary leader," said Tony Blair; "one of the greatest leaders of our time," echoed Bill Clinton.
  • (15) M-mode and two dimensional echocardiography demonstrated abnormal echoes in the left atrium, the density being 22.7 Hounsfield Unit.
  • (16) An unusual appearance of echoes behind the aorta bulging into the left atrium in diastole on both the M-mode and cross-sectional echo suggested this diagnosis prior to cardiac catheterization.
  • (17) Euromaidan was a delayed echo of the social unrest wave , driven by the country's economic failure; it collided with a diplomatic situation that was already fractious over Syria.
  • (18) Small oval cysts (less than or equal to 1 cm) with strong echo were all diagnosed colloid goiter.
  • (19) In the course of doing routine echocardiograms on patients with mitral prosthetic valves, we observed peculiar intracavitary echoes within the left ventricle.
  • (20) The spin-spin relaxation time T2 may be estimated using multiecho pulse sequences, but the accuracy of the estimate is dependent on the fidelity of the spin-echo amplitudes, which may be severely compromised by rf pulse and static field imperfections.

Sound


Definition:

  • (n.) The air bladder of a fish; as, cod sounds are an esteemed article of food.
  • (n.) A cuttlefish.
  • (superl.) Whole; unbroken; unharmed; free from flaw, defect, or decay; perfect of the kind; as, sound timber; sound fruit; a sound tooth; a sound ship.
  • (superl.) Healthy; not diseased; not being in a morbid state; -- said of body or mind; as, a sound body; a sound constitution; a sound understanding.
  • (superl.) Firm; strong; safe.
  • (superl.) Free from error; correct; right; honest; true; faithful; orthodox; -- said of persons; as, a sound lawyer; a sound thinker.
  • (superl.) Founded in truth or right; supported by justice; not to be overthrown on refuted; not fallacious; as, sound argument or reasoning; a sound objection; sound doctrine; sound principles.
  • (superl.) heavy; laid on with force; as, a sound beating.
  • (superl.) Undisturbed; deep; profound; as, sound sleep.
  • (superl.) Founded in law; legal; valid; not defective; as, a sound title to land.
  • (adv.) Soundly.
  • (n.) A narrow passage of water, or a strait between the mainland and an island; also, a strait connecting two seas, or connecting a sea or lake with the ocean; as, the Sound between the Baltic and the german Ocean; Long Island Sound.
  • (v. t.) To measure the depth of; to fathom; especially, to ascertain the depth of by means of a line and plummet.
  • (v. t.) Fig.: To ascertain, or try to ascertain, the thoughts, motives, and purposes of (a person); to examine; to try; to test; to probe.
  • (v. t.) To explore, as the bladder or urethra, with a sound; to examine with a sound; also, to examine by auscultation or percussion; as, to sound a patient.
  • (v. i.) To ascertain the depth of water with a sounding line or other device.
  • (n.) Any elongated instrument or probe, usually metallic, by which cavities of the body are sounded or explored, especially the bladder for stone, or the urethra for a stricture.
  • (n.) The peceived object occasioned by the impulse or vibration of a material substance affecting the ear; a sensation or perception of the mind received through the ear, and produced by the impulse or vibration of the air or other medium with which the ear is in contact; the effect of an impression made on the organs of hearing by an impulse or vibration of the air caused by a collision of bodies, or by other means; noise; report; as, the sound of a drum; the sound of the human voice; a horrid sound; a charming sound; a sharp, high, or shrill sound.
  • (n.) The occasion of sound; the impulse or vibration which would occasion sound to a percipient if present with unimpaired; hence, the theory of vibrations in elastic media such cause sound; as, a treatise on sound.
  • (n.) Noise without signification; empty noise; noise and nothing else.
  • (v. i.) To make a noise; to utter a voice; to make an impulse of the air that shall strike the organs of hearing with a perceptible effect.
  • (v. i.) To be conveyed in sound; to be spread or published; to convey intelligence by sound.
  • (v. i.) To make or convey a certain impression, or to have a certain import, when heard; hence, to seem; to appear; as, this reproof sounds harsh; the story sounds like an invention.
  • (v. t.) To causse to make a noise; to play on; as, to sound a trumpet or a horn.
  • (v. t.) To cause to exit as a sound; as, to sound a note with the voice, or on an instrument.
  • (v. t.) To order, direct, indicate, or proclain by a sound, or sounds; to give a signal for by a certain sound; as, to sound a retreat; to sound a parley.
  • (v. t.) To celebrate or honor by sounds; to cause to be reported; to publish or proclaim; as, to sound the praises of fame of a great man or a great exploit.
  • (v. t.) To examine the condition of (anything) by causing the same to emit sounds and noting their character; as, to sound a piece of timber; to sound a vase; to sound the lungs of a patient.
  • (v. t.) To signify; to import; to denote.

Example Sentences:

  • (1) The sound of the ambulance frightened us, especially us children, and panic gripped the entire community: people believe that whoever is taken into the ambulance to the hospital will die – you so often don’t see them again.
  • (2) Here, we review the nature of the heart sound signal and the various signal-processing techniques that have been applied to PCG analysis.
  • (3) Our experience indicates that lateral rhinotomy is a safe, repeatable and cosmetically sound procedure that provides and excellent surgical approach to the nasal cavity and sinuses.
  • (4) Compared with conservative management, better long-term success (determined by return of athletic soundness and less evidence of degenerative joint disease) was achieved with surgical curettage of elbow subchondral cystic lesions.
  • (5) Respiratory alteration in the intensity of heart sounds is one of the commonest auscultatory pitfalls.
  • (6) I usually use them as a rag with which to clean the toilet but I didn’t have anything else to wear today because I’m so fat.” While this exchange will sound baffling to outsiders, to Brits it actually sounds like this: “You like my dress?
  • (7) It is felt that otologic surgery should be done before the pinna reconstruction as it is very important to try and introduce sound into these children at an early age.
  • (8) To evaluate the relationship between the motion pattern and degree of organic change of the anterior mitral leaflet (AML) and the features of the mitral component of the first heart sound (M1) or the opening snap (OS), 37 patients with mitral stenosis (MS) were studied by auscultation, phonocardiography and echocardiography.
  • (9) The talent base in the UK – not just producers and actors but camera and sound – is unparalleled, so I think creativity will continue unabated.” Lee does recognise “massive” cultural differences between the US and UK.
  • (10) Among the epileptic patients investigated by the stereotactic E. E. G. (Talairach) whose electrodes were introduced at or around the auditory cortex (Area 41, 42), the topography of the auditory responses by the electrical bipolar stimulation and that of the auditory evoked potential by the bilateral click sound stimulation were studied in relation to the ac--pc line (Talairach).
  • (11) Seconds later the camera turns away as what sounds like at least 15 gunshots are fired amid bystanders’ screams.
  • (12) Not making a sound for 24 hours pretty nearly killed me.
  • (13) The decision of the editors to solicit a review for the Medical Progress series of this journal devoted to current concepts of the renal handling of salt and water is sound in that this important topic in kidney physiology has recently been the object of a number of new, exciting and, in some instances, quite unexpected insights into the mechanisms governing sodium excretion.
  • (14) Reduced mineral absorption is fairly well documented and has sound theoretical support from basic chemistry.
  • (15) Endogenous sound-induced (binaural) inhibition which is suggested to be GABA-mediated is also significantly reduced in IC neurons of the GEPR.
  • (16) Five horses raced successfully and lowered the lifetime race records, 1 horse was sound and trained successfully, but died of colic, and 1 horse was not lame in early training.
  • (17) This paper reports two experiments concerned with verbal representation in the test stage of recognition memory for naturalistic sounds.
  • (18) Although sound pressure levels are high, they are probably reduced before reaching the cochlea of the fetus because of the surrounding amniotic fluid and the fluid in the middle ear.
  • (19) The purpose of the present study was to investigate the effects of listening experience on the perception of intraphonemic differences in the absence of specific training with the synthetic speech sounds being tested.
  • (20) Digital respirosonography provides an easy way to assess lung sound amplitudes, frequencies and timing over several breaths.