Word
sedimentary rock
Countable & uncountable
Definition
n. a type of rock that forms when layers of sand, mud, and small stones are pressed together over a very long time.
n. a rock type formed by the accumulation and lithification of mineral or organic particles at the Earth's surface.
Examples
“Sandstone is a common type of sedimentary rock.”
“Scientists study layers of sedimentary rock to see how the local climate has changed over millions of years.”
“The preservation of delicate fossils is most common within sedimentary rock formations, where fine silt can quickly cover and entomb organic remains before decay occurs.”
Examples
simple
“Sandstone is a common type of sedimentary rock.”
contextual
“Scientists study layers of sedimentary rock to see how the local climate has changed over millions of years.”
complex
“The preservation of delicate fossils is most common within sedimentary rock formations, where fine silt can quickly cover and entomb organic remains before decay occurs.”
Usage
Uncountable when referring to the material in general; countable when referring to specific geological classifications or types.
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
- Level
- B2 · Upper Intermediate
- Updated
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