Definition of "geometry" []

• The mathematics of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids. (noun)
• A system of geometry: Euclidean geometry. (noun)
• A geometry restricted to a class of problems or objects: solid geometry. (noun)
• A book on geometry. (noun)
• Configuration; arrangement. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "If you cram twice as many photosites onto a sensor, that halves (quarters? my geometry is a bit weak) the size of each photosite."
• "Thales kept the Egyptian name “earth measurement” for his mathematics, but being Greek, used the Greek word geometry."
• "The best known of these men was Euclid, who perfected the mathematics which we call geometry, and Ptolemy, whose ideas about geography and the shape and size of the globe Columbus carefully studied before he set out on his great voyage."