1. Plural of nomography; graphical representations or charts used to solve mathematical equations or perform calculations without arithmetic.
Usage: technical; mathematics and engineering
2. Plural of nomography; the science or practice of constructing nomograms.
Usage: technical; mathematics and engineering

Examples

• Engineers used nomographies to quickly determine stress values without performing lengthy calculations.
• The textbook included several nomographies to help students solve complex equations graphically.
• Before digital calculators, nomographies were essential tools in engineering and navigation.
• The collection of nomographies in the archive demonstrated the ingenuity of early computational methods.