One of the mysteries of the English language finally explained.
1A half of a circle or of its circumference.
curve, bow, bend, arc, sweepView synonyms
- ‘They usually exhibit a cross section of roughly a semicircle.’
- ‘Throughout the building, circles and semicircles mix with straight lines.’
- ‘The solution, a semicircle whose diameter is on the given line, is obtained by reflecting the curve in the line and invoking the isoperimetric property of the circle.’
- ‘His point is well taken, for if circles were defined in terms of semicircles, then presumably semicircles would be defined in terms of the quarter-circles of which they are composed, and so on, ad infinitum.’
- ‘To the left of the ‘dagger’ a black triangle is gently crowned by a semicircle, gloomily dark gray.’
- ‘Taki - she hasn't gotten his last name and probably never will - has big dark semicircles of anxiety sweat under the arms of his button-down shirt.’
- ‘In the 70°C samples, semicircles and sinusoidal bends are observed.’
- ‘In other words, a semicircle and a family of abutting semicircles constructed on its diameter are isoperimetric.’
- ‘The semicircles were made with a sweep of watercolor consisting of Reid's usual diluted mix of red, yellow and blue - a blend that resolves as gray.’
- ‘The crown was crafted out of platinum and designed as three semicircles, one in the center and one on each side.’
- ‘It is two unequal semicircles (with diameters AB and BC) stuck together along their diameters.’
- ‘It is well burnished only on the exterior body, which is decorated with a series of engraved ticked circles and semicircles.’
- ‘Each half consisted of a line that was a semicircle.’
- ‘His method uses a semicircle rotating in three dimensional space and the curve formed by it cutting another three dimensional surface.’
- ‘The most ornamental part of doors was their heads, which took on various shapes, including triangles, semicircles or arcs.’
- ‘This he affected by circumscribing a semicircle about an isosceles right-angled triangle and a segment of a circle similar to those cut off by the sides.’
- ‘A stationary front is denoted by semicircles and triangles on alternate sides of the front.’
- ‘Just beyond their embrace, their handlers pawed the ground, growling and barking on their hands and knees, held at bay by double semicircles etched in the dirt that demarcated their sides.’
- ‘It is a complete circle and then down on the bottom half there is a semicircle with a little circle above it.’
- ‘It appears in all the canvases and works on paper in different combinations and permutations, linked by linear extensions that form varying kinds of S-curves or semicircles.’
- 1.1 A set of objects arranged in a semicircle.‘chairs were in a semicircle round the hearth’
- ‘Color-coded control buttons are arranged in a semicircle within thumb's reach for easy, one-hand operation.’
- ‘I'm sat in one of those chairs with a little side table to rest your notebook on, arranged in a semicircle in a darkened room.’
- ‘The patara ruin has rows of stone seats arranged in a semicircle, like the chambers of the American Congress.’
- ‘Tables have been arranged in a semicircle around the bench rather than in the normal linear fashion.’
- ‘Without thinking about it Clara, Tennyson, Cane and Brian had arranged themselves in a semicircle around Nicholas.’
Early 16th century: from Latin semicirculus (see semi-, circle).
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