1. Pertaining to geometry; according to or done by geometry. Geometrical proportion, when the quantities increase by a common multiplier, as 1, 2, 4, 8, 16, or decrease by a common divisor, as 16, 8, 4, 2, 1. Geometric pen, an ingenious instrument for drawing curves. Geometrical elevation, a design for any part of a building drawn according to the rules of geometry, as opposed to perspective or natural elevation. Geometrical staircase, so called when the stairs are supported only by being inserted into the wall at one end.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• geometircal,
• semetrical,
• biometrical,
• geometrics,
• geomtrical,
• feometrical,
• veometrical,
• gometrical,
• geometricl,
• geometrical,
• geomatrical,
• geometricaly,
• geometrida,
• geomatridae,
• izometrical,
• isometrical,
• areometrical,
• gasomterical,
• geodetical,
• gonometrical

• geometric,
• geometric pace,
• geometrician,
• geometrically,
• geometridae,
• gentrify,
• geometrid moth,
• geometric mean,
• geometrid,
• gentrification,
• geometer,
• geometry.

The adjective form of the word "geometrical" is "geometric".

The plural form of "geometrical" is "geometricals".

The singular form of "geometrical" is "geometrical".