Parsimony

Definition

A principle of simplicity in reasoning and explanation, favoring the theory or explanation that requires the fewest assumptions.

Etymology

From Latin 'parsimonia', meaning 'thriftiness' or 'frugality'.

Example

In phylogenetic analysis, parsimony is used to determine the evolutionary relationships between species by selecting the tree that requires the fewest evolutionary changes.

Related Terms

• Occam's Razor
• Simplicity
• Evolutionary inference

Usage Notes

Parsimony is a fundamental principle in science, particularly in fields like biology and computer science.