) KEY NOUN: pl. ge·om·e·tries
- The mathematics of the properties, measurement, and relationships of points, lines, angles, surfaces, and solids.
- A system of geometry: Euclidean geometry.
- A geometry restricted to a class of problems or objects: solid geometry.
- A book on geometry.
- Configuration; arrangement.
- A surface shape.
- A physical arrangement suggesting geometric forms or lines.
Middle English geometrie
, from Old French, from Latin gemetria
, from Greek gemetri
, from gemetrein
, to measure land
; see m-2
in Indo-European rootsOTHER FORMS:ge·ome·trician