# syncline

> English word · Noun · IPA /ˈsɪn.klaɪn/

## Definitions
1. A concave-upward fold in rock strata

## Etymology
From syn- + -cline.

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