資料來源 : Webster's Revised Unabridged Dictionary (1913)
Geometry \Ge*om"e*try\, n.; pl. {Geometries}[F. g['e]om['e]trie,
L. geometria, fr. Gr. ?, fr. ? to measure land; ge`a, gh^,
the earth + ? to measure. So called because one of its
earliest and most important applications was to the
measurement of the earth's surface. See {Geometer}.]
1. That branch of mathematics which investigates the
relations, properties, and measurement of solids,
surfaces, lines, and angles; the science which treats of
the properties and relations of magnitudes; the science of
the relations of space.
2. A treatise on this science.
{Analytical, or Co["o]rdinate}, {geometry}, that branch of
mathematical analysis which has for its object the
analytical investigation of the relations and properties
of geometrical magnitudes.
{Descriptive geometry}, that part of geometry which treats of
the graphic solution of all problems involving three
dimensions.
{Elementary geometry}, that part of geometry which treats of
the simple properties of straight lines, circles, plane
surface, solids bounded by plane surfaces, the sphere, the
cylinder, and the right cone.
{Higher geometry}, that pert of geometry which treats of
those properties of straight lines, circles, etc., which
are less simple in their relations, and of curves and
surfaces of the second and higher degrees.
資料來源 : WordNet®
elementary geometry
n : geometry based on Euclid's axioms: e.g., only one line can
be drawn through a point parallel to another line [syn: {parabolic
geometry}, {Euclidean geometry}]