Word
abyssolith
Definition
n. a type of rock that forms when magma cools very slowly deep inside the Earth. It is usually dark and has a smooth, glassy surface.
n. a rock formed by the slow cooling of magma at great depths within the Earth's crust. Characterised by a fine-grained or glassy texture and typically dark in colour.
Examples
“The geologist identified the sample as an abyssolith.”
“The deep-sea volcanic vents produced an abyssolith that remained hidden from the surface for millions of years.”
“Unlike extrusive igneous rocks that cool rapidly on the surface, abyssoliths exhibit a homogeneous structure due to the immense pressure and slow crystallisation process occurring kilometers below the Earth's crust.”
Examples
simple
“The geologist identified the sample as an abyssolith.”
contextual
“The deep-sea volcanic vents produced an abyssolith that remained hidden from the surface for millions of years.”
complex
“Unlike extrusive igneous rocks that cool rapidly on the surface, abyssoliths exhibit a homogeneous structure due to the immense pressure and slow crystallisation process occurring kilometers below the Earth's crust.”
Word family
NOUN
ADJECTIVE
Domain
- 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.C2 ProficiencyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.8.5–9.0TOEFL 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: 6.0114–120
- Frequency
- Rare
- Level
- C2 · Proficiency
- Updated
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