schist
Schist (noun) means a coarse-grained metamorphic rock made of layers that split easily into thin slabs. Example: “The hikers climbed a ridge of dark schist that glittered in the sun.”
How to use schist
Learner’s notesIn plain EnglishSchist is a rock that is made of thin layers and splits apart easily.
It is a technical term used mostly in geology and building.
The sch is pronounced sh, so the word rhymes with list, not with the sk of school.
Trace the full origin ↓Fill the gap
Can you complete this real example?
The hikers climbed a ridge of dark _____ that glittered in the sun.
Etymology
English took the word from French schiste, which came from a Latin phrase meaning a stone that splits readily. That in turn goes back to Ancient Greek words for splittable and to split.