# Pliocene

> English word · Adjective · IPA /ˈplaɪəsiːn/ · frequency rank #42,826

## Definitions
1. Of a geologic epoch within the Neogene period from about 5.3 to 1.7 million years ago; marked by the appearance of humanity's first ancestors.

## Etymology
From Ancient Greek πλείων (pleíōn, “more”) + καινός (kainós, “new”). Coined by English philosopher and historian of science William Whewell in 1831 for Charles Lyell, who introduced it in 1833 in his book Principles of Geology. By surface analysis, pleio- + -cene.

## Common misspellings (11)
`lpiocene`, `pilocene`, `plicoene`, `plioccene`, `plioceen`, `pliocenne`, `pliocnee`, `plioecne`, `plliocene`, `ploicene`, `ppliocene`

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