Definition of atheroma in US English:



  • 1Degeneration of the walls of the arteries caused by accumulated fatty deposits and scar tissue, and leading to restriction of the circulation and a risk of thrombosis.

    • ‘For subjects who were 45-69 yr of age, Crawford and Crawford reported no difference in the prevalence of extensive atheroma or significant stenosis between residents of hard-water and soft-water areas.’
    • ‘The early lesions of calcific degenerative disease resemble atheroma of the coronary artery.’
    • ‘If the ultrasound shows stenosis or atheroma, the patient should understand the risks and benefits of the procedure.’
    • ‘The aorta showed severe complicated atheroma throughout its length.’
    • ‘During the warmer seasons, there was a decline in the number of strokes resulting from atheroma.’
    • ‘As the lesion grows, a fibrous cap made of collagen and elastin walls off the lesion from the lumen of the artery to protect the arterial lumen from the atheroma.’
    • ‘Cholesterol embolisation occurs in patients with generalised atheroma, arising as a consequence of arteriosclerosis.’
    1. 1.1 The fatty material that forms plaques in the arteries.
      • ‘Ultrasound devices provide reliable measurements of lumen size, distensibility, wall thickness, and the presence of atheroma in large arteries.’
      • ‘Angina happens when the coronary arteries get blocked up with small pieces of fatty material called atheroma.’


Late 16th century: via Latin from Greek athērōma, from athērē, atharē ‘groats’.