- a period of European history in the 18th cent. noted for belief in the ability of reason to discover truth, shape society, etc.
- [a- of r-] the age at which a child is presumed to know right from wrong and be capable of responsible action
Age of Reasonage of reason
age of reason
- often Age of Reason An era during which rational thought is prominent or esteemed, especially the Enlightenment in western Europe.
- An age at which a person is considered capable of making reasoned judgments.
- (Roman Catholicism) Seven years of age, at which age a person is morally liable for the sins that he or she commits.
- (usually capitalized) The historical period when philosophy, science, and social thought were associated with the principles of rationalism and the celebration of the achievements of human reason, often considered to be centered in the 18th century.