ClimateAugust 30, 2026
riffles
RIF-ulz
Definition
Shallow, rocky sections of a stream or river where the water flows quickly and becomes agitated, creating broken, rippling patterns on the surface.
Etymology
The word likely emerged in the 17th century, possibly derived from Middle Dutch 'rijfel' or Low German 'riffeln', referring to something wrinkled, grooved, or notched.
In the news
The article mentions that after removing a concrete barrier, the river's natural flow resumed and riffles began to reform, indicating a recovery of the river's health and habitat quality.
Breaking down the barriers for fish in Yorkshire's rivers
Read the full article ↗Yorkshire Post