# Smithian

> English word · Adjective

## Definitions
1. Of, pertaining to, or characteristic of a person bearing the surname Smith.
2. Of or characteristic of the theories of the political economist Adam Smith (1723–1790).
3. Of a regional geological stage of the Early Triassic epoch (249.7 – 247.4 Ma; preceded by the Dienerian and followed by the Spathian).

## Etymology
From Smith + -ian.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/smithian