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Definitions of diameter

1. the length of a straight line passing through the center of a circle and connecting two points on the circumference Scrapingweb Dictionary DB

2. a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface) Scrapingweb Dictionary DB

3. Any right line passing through the center of a figure or body, as a circle, conic section, sphere, cube, etc., and terminated by the opposite boundaries; a straight line which bisects a system of parallel chords drawn in a curve. Webster Dictionary DB

4. A diametral plane. Webster Dictionary DB

5. The length of a straight line through the center of an object from side to side; width; thickness; as, the diameter of a tree or rock. Webster Dictionary DB

6. The distance through the lower part of the shaft of a column, used as a standard measure for all parts of the order. See Module. Webster Dictionary DB

7. A straight line through the center of a figure, dividing it in half; as, the diameter of the earth is 7,926 miles. The Winston Simplified Dictionary. By William Dodge Lewis, Edgar Arthur Singer. Published 1919.

8. 1. A straight line connecting two opposite points on the surface of a more or less spherical or cylindrical body, or at the boundary of an opening or foramen, passing through the center of such body or opening. 2. The distance measured along such a line. A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.

9. The measure through or across: a straight line passing through the centre of a circle or other figure, terminated at both ends by the circumference. The american dictionary of the english language. By Daniel Lyons. Published 1899.

10. Straight line passing through the centre of a circle and terminated at both ends by the circumference; distance through the centre. The Clarendon dictionary. By William Hand Browne, Samuel Stehman Haldeman. Published 1894.

11. A line through the center, as of a circle or sphere, terminated at the boundary thereof; the length of such a line. The Concise Standard Dictionary of the English Language. By James Champlin Fernald. Published 1919.

12. A straight line passing through the centre of a circle from circumference to circumference, and dividing it into two equal parts; the length of a right line passing through the centre of an object, from one side to the other. Nuttall's Standard dictionary of the English language. By Nuttall, P.Austin. Published 1914.

13. The measure of a body through from side to side; a straight line passing through the centre of a circle, having both ends terminated by the circumference. Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.

14. The diameter of a graph is the maximum value of the minimumdistance between any two nodes. foldoc_fs

15. d[=i]-am'e-t[.e]r, n. the measure through or across: a straight line passing through the centre of a circle or other figure, terminated at both ends by the circumference.--adjs. DIAM'ETRAL, DIAMET'RIC, -AL, in the direction of a diameter: pertaining to the diameter: like the opposite ends of the diameter (as in diametrical opposition).--advs. DIAM'ETRALLY, in a diametral manner; DIAMET'RICALLY, exactly.--TACTICAL DIAMETER, the space covered by a steamer in turning 180° out of her original course. [Through Fr. and L. from Gr. diametros--dia, through, metrein, to measure.] gutenberg.org/ebooks/37683

16. Straight line passing from side to side of any body or geom. figure through centre (with special geom. applications for curves), transverse measurement, width, thickness; unit of linear measurement of magnifying-power (lens magnifying 2000 dd.). So diametral. a., diametrally adv. [old French] Concise Oxford Dictionary

17. A straight line joining opposite points of a figure. American pocket medical dictionary.

18. The distance from any point on the periphery of a surface, body, or space to the opposite point. Appleton's medical dictionary.

19. n. [Greek] A right line through the centre of a figure or body, as a circle, sphere, cube, &c., and terminated by the opposite boundaries;—length of a straight line through the centre of an object from side to side; width; thickness. Cabinet Dictionary

20. The line which, passing through the center of a circle, or other curvilinear figure, divides it into equal parts. Complete Dictionary