The lipid deposits in the intima of arteries, producing a yellow swelling on the endothelial surface; a characteristic of atherosclerosis. SYN: atherosis. [G. athere, gruel, + -oma, tumor]

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ath·er·o·ma .ath-ə-'rō-mə n, pl -mas also -ma·ta -mət-ə
1) fatty degeneration of the inner coat of the arteries
2) an abnormal fatty deposit in an artery
ath·er·o·ma·tous -'rō-mət-əs adj

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degeneration of the walls of the arteries due to the formation in them of fatty plaques and scar tissue. This limits blood circulation and predisposes to thrombosis. It is common in adults in Western countries. A diet rich in animal fats (see cholesterol) and refined sugar, cigarette smoking, obesity, and inactivity are the principal causes. It may be symptomless but often causes complications from arterial obstruction in middle and late life (such as angina pectoris, heart attack, stroke, and gangrene). Treatment is by prevention, but some symptoms may be ameliorated by drug therapy (e.g. angina by glyceryl trinitrate) or by surgical bypass of the arterial obstruction.
atheromatous adj.

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ath·er·o·ma (ath″ər-oґmə) [Gr. athērōma a tumor filled with gruellike matter, from athērē gruel] a mass of plaque of degenerated, thickened arterial intima occurring in atherosclerosis; called also atherosis and atheromatous degeneration.

Medical dictionary. 2011.

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  • atheroma — encysted tumor, 1706, medical Latin, from Gk. atheroma, from athere groats, porridge (related to ather chaff ), in reference to what is inside. For ending, see OMA (Cf. oma) …   Etymology dictionary

  • atheroma — [ath΄ər ō′mə] n. pl. atheromas or atheromata [ath΄ə rō′mə tə] [ModL < Gr athērōma, tumor filled with grainy matter < athēr, awn, chaff + ōma, OMA] a condition marked by deposits of small fatty nodules on the inner walls of the arteries,… …   English World dictionary

  • Atheroma — Ath e*ro ma, n. [L., fr. Gr. ?, ?, fr. ? gr?ats, meal.] (Med.) (a) An encysted tumor containing curdy matter. (b) A disease characterized by thickening and fatty degeneration of the inner coat of the arteries. [1913 Webster] …   The Collaborative International Dictionary of English

  • Atherōma — (gr.), kleine rundliche Geschwulst, die ohne Zeichen von Entzündung entsteht, s. Brei u. Balggeschwulst. Daher Atheromatös, breiartig, breiartige Masse enthaltend; Atheromatöser Proceß, krankhafter Vorgang an der inneren Haut der Blutgefäße,[886] …   Pierer's Universal-Lexikon

  • Atherōma — Atherōma, s. Grützbeutel …   Meyers Großes Konversations-Lexikon

  • Atheroma — Atheroma, s. Balggeschwulst …   Herders Conversations-Lexikon

  • atheroma — noun (plural mas; also atheromata) Etymology: New Latin atheromat , atheroma, from Latin, a tumor containing matter resembling gruel, from Greek athērōma, from athēra gruel Date: 1875 1. fatty degeneration of the inner coat of the arteries 2. an… …   New Collegiate Dictionary

  • atheroma — UK [ˌæθəˈrəʊmə] / US [ˌæθəˈroʊmə] noun [countable] Word forms atheroma : singular atheroma plural atheromas or atheromata medical an amount of cholesterol and other substances that gradually form on the inside wall of an artery and can block the… …   English dictionary

  • atheroma — atheromatous /ath euh rom euh teuhs, roh meuh /, adj. /ath euh roh meuh/, n., pl. atheromas, atheromata / meuh teuh/. Pathol. 1. a sebaceous cyst. 2. a mass of yellowish fatty and cellular material that forms in and beneath the inner lining of… …   Universalium

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