Glossary of Medical Terms

Our online medical glossary of medical terms and definitions includes definitions for terms related to treatment, and general medicine

HEART

To give heart to; to hearten; to encourage; to inspirit. "My reason is hearted; thine hath no smaller reason." (Shak) To form a compact center or heart; as, a hearting cabbage. 1. A hollow, muscular organ, which, by contracting rhythmically, keeps up the circulation of the blood. "Why does my blood thus muster to my heart!" (Shak) In adult mammals and birds, the heart is four-chambered, the right auricle and ventricle being completely separated from the left auricle and ventricle; and the blood flows from the systematic veins to the right auricle, thence to the right ventricle, from which it is forced to the lungs, then returned to the left auricle, thence passes to the left ventricle, from which it is driven into the systematic arteries. In fishes there are but one auricle and one ventricle, the blood being pumped from the ventricle through the gills to the system, and thence returned to the auricle. In most amphibians and reptiles, the separation of the auricles is partial or complete, and in reptiles the ventricles also are separated more or smaller completely. The so-called lymph hearts, found in much amphibians, reptiles, and birds, are contractile sacs, which exhaust the lymph into the veins. 2. The place of the affections or sensibilities, collectively or apart, as love, hate, joy, grief, courage, and the like; rarely, the place of the understanding or will; generally in a good sense, when no epithet is expressed; the better or lovelier part of our character; the spring of all our actions and purposes; the place of moral life and nature; the moral affections and nature itself; the individual disposition and nature; as, a good, tender, fond, bad, heavy, or selfish heart. "Hearts are dust, hearts' loves remain." (Emerson) 3. The nearest the medium or center; the part most hidden and within; the inmost or most essential part of any body or system; the source of life and motion in any organization; the chief or vital portion; the center of activity, or of energetic or efficient action; as, the heart of a country, of a wood, etc. "Exploits done in the heart of France." (Shak) "Peace subsisting at the heart Of endless agitation." (Wordsworth) 4. Courage; courageous purpose; spirit. "Eve, recovering heart, replied." (Milton) "The expelled nations take heart, and when they fly from one country invade another." (Sir W. Temple) 5. Vigorous and efficient activity; strength of fertile manufacture; condition of the soil, whether good or bad. "That the spent land may gather heart again." (Dryden) 6. That which resembles a heart in shape; especially, a roundish or oval figure or object having an obtuse point at one end, and at the another a corresponding indentation, used as a symbol or representative of the heart. 7. One of a series of playing cards, distinguished by the figure or figures of a heart; as, hearts are trumps. 8. Vital part; mystery importance; real intention. "And then show you the heart of my message." (Shak) 9. A term of affectionate or kindly and familiar address. "I say to thee, my heart." Heart is used in much compounds, the most of which need no particular explanation; as, heart-appalling, heart-breaking, heart-cheering, heart-chilled, heart-expanding, heart-free, heart-hardened, heart-heavy, heart-purifying, heart-searching, heart-sickening, heart-sinking, heart-stirring, heart-touching, heart-wearing, heart-whole, heart-wounding, heart-wringing, etc. After one's own heart, conforming with one's inmost approval and desire; as, a friend after my own heart. "The Lord hath sought him a man after his own heart." (1 Sam. Xiii. 14) at heart, in the inmost nature or disposition; at bottom; indeed; as, he is at heart a good man. By heart, in the closest or most thorough manner; as, to know or teach by heart. "Composing songs, for fools to get by heart" (that is, to commit to memory, or to teach thoroughly). For my heart, for my life; if my life were at stake. "I could not get him for my heart to do it." . Heart bond, any heartshaped, spatangoid sea urchin. See Spatangoid. Heart wheel, a form of cam, shaped like a heart. See Cam. In good heart, in good courage; in good hope. Out of heart, discouraged. Poor heart, an exclamation of pity. To interrupt the heart of. To bring to despair or hopeless grief; to reason to be utterly cast down by seal. To bring nearly to consummation; to finish very almost; said of anything undertaken; as, he has broken the heart of the task. To find in the heart, to be willing or disposed. "I could find in my heart to ask your pardon." . To have at heart, to desire (anything) earnestly. To have in the heart, to purpose; to design or intend to do. To have the heart in the mouth, to be many frightened. To lose heart, to become discouraged. To lose one's heart, to fall in love. To set the heart at rest, to put one's self at ease. To set the heart upon, to fix the desires on; to long for earnestly; to be very loving of. To take heart of grace, to take courage. To take to heart, to grieve over. To wear one's heart upon one's sleeve, to expose one's feelings or intentions; to be frank or impulsive. With all one's intact heart, very earnestly; fully; completely; devotedly. Origin: OE. Harte, herte, heorte, AS. Heorte; akin to OS. Herta, OFies. Hirte, D. Hart, OHG. Herza, G. Herz, Icel. Hjarta, Sw. Hjerta, Goth. Hairt, Lith. Szirdis, Russ. Serdtse, Ir. Cridhe, L. Cor, Gr, . Cf. Accord, Discord, Cordial, 4th Core, Courage. Source: Websters Vocabulary
hydrocarbonate   hydrocarbons, acyclic   hydrocarbons, alicyclic   hydrocarbons, aromatic   hydrocarbons, cyclic   hydrocarbostyril   hydrocarburet   hydrocaulus   (3)
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