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diameter |
Also found in: Dictionary/thesaurus, Medical, Legal, Acronyms, Wikipedia, Hutchinson | 0.02 sec. |
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diameter a. a straight line connecting the centre of a geometric figure, esp a circle or sphere, with two points on the perimeter or surface b. the length of such a line diameter [dī′am·əd·ər] (mathematics) A line segment which passes through the center of a circle, and whose end points lie on the circle. The length of such a line. For a conic, any straight line that passes through the midpoints of all the chords of the conic that are parallel to a given chord. For a set, the smallest number that is greater than or equal to the distance between every pair of points of the set.
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| The horizontal diameter was fifty feet, and the vertical diameter seventy-five feet. Not the wondrous cistern in the whale's huge head; not the prodigy of his unhinged lower jaw; not the miracle of his symmetrical tail; none of these would so surprise you, as half a glimpse of that unaccountable cone, -- longer than a Kentuckian is tall, nigh a foot in diameter at the base, and jet-black as Yojo, the ebony idol of Queequeg. Now imagine a Priest, whose mouth is at M, and whose front semicircle(AMB) is consequently coloured red, while his hinder semicircle is green; so that the diameter AB divides the green from the red. |
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