Definitions

1. geometry The line that bounds a circle or other two-dimensional figure

2. obsolete The surface of a round or spherical object

3. geometry The length of such a line

4. The boundary line of a circle.

5. The margin or area surrounding something.

6. The boundary line of an area or object.

7. The external surface of a sphere, or of any orbicular body.

8. A circle; anything circular.

9. The line that goes round or encompasses a circular figure; a periphery.

10. the boundary line encompassing an area or object

11. the length of the closed curve of a circle

12. The space included in a circle; anything circular in form.

13. The line that bounds a circle; by extension, the bounding line of any regular plane curvilinear figure; a periphery: as, the circumference of a circle or an ellipse. The circumference of a sphere is that of a great circle of the sphere.

14. A going about; circumlocution.

15. Hence Loosely, any bounding line: as, the circumference of a city.

16. obsolete, transitive To include in a circular space; to bound.

17. To include in a circular or spherical space.

18. obsolete To include in a circular space; to bound.

Examples

1. The number defines the ratio of the circumference of a circle to its diameter.

2. Pi is a physical constant defined as the ratio of a circle 's circumference to its diameter.

3. They think there is a much better alternative to the equation, used to measure the circumference of a circle.

4. The result is a lighter boot with narrower heels, a smaller ankle circumference and buckles that do not require the biceps of a superhero.

5. It follows directly from this discussion, that for our sphere-beings the circumference of a circle first increases with the radius until the “circumference of the universe” is reached, and that it thenceforward gradually decreases to zero for still further increasing values of the radius.

6. This means the circumference is about 1000 meters, so v is 1000 meters per minute, which yields a simulated gravity about 1/6 of Earth's -- the same as the moon (though the people inside move as though the gravity is Earth-normal).

7. It makes tubes 44 stitches in circumference or straight pieces up to 44 stitches wide and takes up to a sort of medium chunky weight of yarn - just right for a tubular scarf but a bit narrow to make hats.

8. Unfortunately that means my jeans are quite uncomforable to wear, because the belt circumference is now at least two holes smaller than the waistband of the jeans.

9. Lord Howe is a ring of land some one hundred and fifty miles in circumference, several hundred yards wide at its widest, and towering in places to a height of ten feet above sea level.

10. Paul Rodriguez was a Mexican porter who from the upper and lateral part of his head had a horn 14 cm in circumference and divided into three shafts, which he concealed under a cap.

11. The atoll of Hikueru lay low on the water, a circle of pounded coral sand a hundred yards wide, twenty miles in circumference, and from three to five feet above high-water mark.

12. The park circumference is approximately 40 kilometers (km), extending from the bridge at Ürgüp then leading north for 6 km following the River Damsa.

13. Large Hadron collider is 27 Km in circumference and will accelerates protons to 99. 99999% the speed of light (I might not have gotten the right number of 9s, sorry if this spoils your calculations if you are trying this at home).

14. ‘His last work was on the cycloid, the curve traced by a point on the circumference of a rolling circle.’

15. ‘The perimeter of the inner polygon is shorter than the circumference of the circle.’

16. ‘We should have a polygon inscribed in the circle the sides of which coincide with the circumference of the circle.’

17. ‘Spanish swordsmen attack and defend by stepping around each other along the circumference of the circle.’

18. ‘The letters spelling out Canadian Security Investigative Service were in big white bold letters around the circumference of the circle.’

19. ‘Galileo established the circumference of the larger circle by restricting the subject matter of physics to statements about primary qualities.’

20. ‘We will locate a marker on the circumference of a circle.’

21. ‘I've long since forgotten quadratic equations and how to calculate the circumference of a circle.’

22. ‘Since E lies on the circumference of both circles, it is located at one of the points of intersection.’

23. ‘We would regard the starting point as the easternmost point along the circumference of the circle.’

24. ‘Taking a circle of diameter 10,000,000 chang, he found the circumference of this circle to be less than 31,415,927 chang and greater than 31,415,926 chang.’

25. ‘Pi, whose decimal value is 3.1415926535…, is simply the ratio of the circumference of a circle to its diameter.’

26. ‘As a result of this activity, students may or may not discover that the diameter and the circumference of the circle stand in a linear relationship.’

27. ‘In the normal geometry of flat space, the diameter of a circle is its circumference divided by pi.’

28. ‘At its simplest, pi is the ratio of the circumference of a circle to its diameter.’

29. ‘In maths today they could not work out the circumference of a circle.’

30. ‘It can be shown by geometry that the radius of a circle will inscribe six equal chords within the circumference of the circle.’

31. ‘He regretted that an exact measure of the circumference of a circle in terms of diameter was not available.’

32. ‘The 18th-century Chinese scholar Tai Chen presented an elegant dissection for approximating the value of pi - the ratio of a circle's circumference to its diameter.’

33. ‘The mathematical constant pi is the number you get when you divide a circle's circumference by its diameter.’

34. ‘A hailstone with a 7-inch diameter and a circumference of 18.75 inches was recently named the largest hailstone ever recovered in the United States.’

35. ‘After measuring a drum shade, add 1 inch to the circumference and 3 inches to the height.’

36. ‘The winner of the under ten category was Scarlet, whose pumpkin had a circumference of 57 inches.’

37. ‘The circumference of my thighs was reduced by between half and a quarter of an inch.’

38. ‘You can walk the entire circumference, a distance of 1.3 km.’

39. ‘I had to measure the circumference and calculate the diameter to make sure it would fit in and out of my doorway!’

40. ‘You would do better to cut out a large circle of wood and use a tape measure to find its circumference and diameter.’

41. ‘A search for a new teak wood tree of the required circumference and length began.’

42. ‘Waist circumferences of 35 inches or greater in women have been associated with increased health risks.’

43. ‘Men should have a waist circumference less than 40 inches.’

44. ‘The length of the collar should be approximately two inches longer than the circumference of the dog's neck.’

45. ‘Measure the circumference of your head in inches and see what you get!’

46. ‘He has travelled more than 774,200 miles on trips in Italy and abroad, equivalent to nearly 30 times the circumference of the earth.’

47. ‘Each subject was placed in the supine position, and upper arm and wrist circumferences were measured to determine proper cuff size.’

48. ‘They had these peculiar heels that were of a similar circumference to a ballpoint pen, and were about six inches in depth.’

49. ‘Maternal arm and calf circumferences were measured with plastic-covered fabric measuring tapes and read to the nearest millimeter.’

50. ‘The World Health Organization standards for waist and hip circumferences are based on measurements made in the standing position.’

51. ‘Calculating your body mass index and measuring your waist circumference are two ways to help tell if you're overweight or obese.’

52. ‘Measure the circumference of your wrist where the bracelet will be worn.’

53. ‘One commonly used method for quantifying differences in body fat distribution is to measure and comopute the ratio of the waist circumference to the hip circumference.’

54. a danger to all races over the whole circumference of the globe