| sound | The air bladder of a fish; as, cod sounds are an esteemed article of food. Origin: AS. Sund a swimming, akin to E. Swim. See Swim. 1. Whole; unbroken; unharmed; free from flaw, defect, or decay; perfect of the kind; as, sound timber; sound fruit; a sound tooth; a sound ship. 2. Healthy; not diseased; not being in a morbid state; said of body or mind; as, a sound body; a sound constitution; a sound understanding. 3. Firm; strong; safe. "The brasswork here, how rich it is in beams, And how, besides, it makes the whole house sound." (Chapman) 4. Free from error; correct; right; honest; true; faithful; orthodox; said of persons; as, a sound lawyer; a sound thinker. "Do not I know you a favorer Of this new seat? Ye are nor sound." (Shak) 5. 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. "Hold fast the form of sound words, which thou hast heard of me." (2 Tim. I. 13) 6. Heavy; laid on with force; as, a sound beating. 7. Undisturbed; deep; profound; as, sound sleep. 8. Founded in law; legal; valid; not defective; as, a sound title to land. Sound is sometimes used in the formation of self-explaining compounds; as, sound-headed, sound-hearted, sound-timbered, etc. Sound currency, a currency whose actual value is the same as its nominal value; a currency which does not deteriorate or depreciate or fluctuate in comparision with the standard of values. Origin: OE. Sound, AS. Sund; akin to D. Gezond, G. Gesund, OHG. Gisunt, Dan. & Sw. Sund, and perhaps to L. Sanus. Cf. Sane. <geography> 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. "The Sound of Denmark, where ships pay toll." (Camden) Sound dues, tolls formerly imposed by Denmark on vessels passing through the Baltic Sound. Origin: AS. Sund a narrow sea or strait; akin to Icel, Sw, Dan. & G. Sund, probably so named because it could be swum across. See Swim. <zoology> A cuttlefish. 1. To measure the depth of; to fathom; especially, to ascertain the depth of by means of a line and plummet. 2. To ascertain, or try to ascertain, the thoughts, motives, and purposes of (a person); to examine; to try; to test; to probe. "I was in jest, And by that offer meant to sound your breast." (Dryden) "I've sounded my Numidians man by man." (Addison) 3. <medicine> 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. Origin: F. Sonder; cf. AS. Sundgyrd a sounding rod, sundline a sounding line (see Sound a narrow passage of water). <medicine> 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. Origin: F. Sonde. See Sound to fathom. Source: Websters Dictionary (01 Mar 1998) |
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| sound localization | Ability to determine the specific location of a sound source. (12 Dec 1998) |
| sound pressure level | A measure of sound energy relative to 0.0002 dynes/cm2, expressed in decibels. (05 Mar 2000) |
| sound spectrography | The graphic registration of the frequency and intensity of sounds, such as speech, infant crying, and animal vocalizations. (12 Dec 1998) |
| sound-board | A sounding-board. "To many a row of pipes the sound-board breathes." (Milton) Source: Websters Dictionary (01 Mar 1998) |
| sounder | One who, or that which; sounds; specifically, an instrument used in telegraphy in place of a register, the communications being read by sound. <zoology> A herd of wild hogs. Source: Websters Dictionary (01 Mar 1998) |
| soundex code | A sequence of letters used for recording names phonetically, especially in record linkage. (05 Mar 2000) |
| soundless | Not capable of being sounded or fathomed; unfathomable. Source: Websters Dictionary (01 Mar 1998) |
| soundness | The quality or state of being sound; as, the soundness of timber, of fruit, of the teeth, etc.; the soundness of reasoning or argument; soundness of faith. Synonym: Firmness, strength, solidity, healthiness, truth, rectitude. Source: Websters Dictionary (01 Mar 1998) |
| anvil sound | In cases of a large pulmonary cavity or of pneumothorax, a clear metallic sound obtained by striking a coin, held against the chest, by another coin, or by flicking the chest wall with one's fingernail; the sound is heard on auscultating the chest wall on the same side anteroposteriorly. Synonym: anvil sound, bell sound, coin test. (05 Mar 2000) |
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| atrial sound | The sound produced in late diastole in association with ventricular filling due to atrial systole and related to reduced ventricular compliance. It is a low frequency oscillation that may be normal at older ages owing to a physiologic decline in ventricular compliance but is nearly always abnormal at younger ages if it is of high intensity or palpable. It is common in ventricular hypertrophy, particularly with hypertension, and is almost invariable during acute myocardial infarction. Fourth heart sounds may arise from the right or left ventricle or both. Synonym: atrial sound. (05 Mar 2000) |
| auscultatory sound | A rale, murmur, bruit, fremitus, or other sound heard on auscultation of the chest or abdomen. (05 Mar 2000) |
| bell sound | In cases of a large pulmonary cavity or of pneumothorax, a clear metallic sound obtained by striking a coin, held against the chest, by another coin, or by flicking the chest wall with one's fingernail; the sound is heard on auscultating the chest wall on the same side anteroposteriorly. Synonym: anvil sound, bell sound, coin test. (05 Mar 2000) |
| Campbell sound | A miniature sound with a short round-tipped beak, especially curved for the deep urethra of the young male. (05 Mar 2000) |
| cannon sound | The loud first heart sound heard intermittently in complete atrioventricular block and in interference-dissociation when the ventricles happen to contract shortly after the atria. Synonym: cannon sound. (05 Mar 2000) |
| cardiac sound | The sounds heard over the cardiac region produced by the functioning of the heart. There are four distinct sounds: the first occurs at the beginning of systole and is heard as a "lubb" sound; the second is produced by the closing of the aortic and pulmonary valves and is heard as a "dupp" sound; the third is produced by vibrations of the ventricular walls when suddenly distended by the rush of blood from the atria; and the fourth is produced by atrial contraction and ventricular filling but is rarely audible in the normal heart. The physiological concept of heart sounds is differentiated from the pathological heart murmurs. (12 Dec 1998) |
| gallop sound | The abnormal third or fourth heart sound which, when added to the first and second sound's, produces the triple cadence of gallop rhythm. See: gallop. (05 Mar 2000) |
| van Buren sound | A standard sound, available in several calibers, with a gently curved tip designed to follow the contour of the deep bulbous urethra in the male; used for urethral calibration or dilation. (05 Mar 2000) |
| McCrea sound | A gently curved sound used to dilate the urethra in infants or children. (05 Mar 2000) |
| cavernous voice sound | The hollow or metallic voice sound heard over a pulmonary cavity. (05 Mar 2000) |
| respiratory sound | A murmur, bruit, fremitus, rhonchus, or rale heard on auscultation over the lungs or any part of the respiratory tract. (05 Mar 2000) |
| percussion sound | Any sound elicited on percussing over one of the cavities of the body. (05 Mar 2000) |
| pericardial friction sound | A to-and-fro grating, rasping, or, rarely, creaking sound heard over the heart in some cases of pericarditis, due to rubbing of the inflamed pericardial surfaces as the heart contracts and relaxes; during normal sinus rhythm it is usually triphasic; during any rhythm it may be biphasic or uniphasic. Synonym: pericardial rub, pericardial friction rub. (05 Mar 2000) |
| Mercier's sound | A catheter the beak of which is short and bent almost at a right angle. (05 Mar 2000) |