Definition of pitchstone in English:

pitchstone

noun ˈpɪtʃstəʊnˈpiCHˌstōn

mass nounGeology

A dull vitreous rock resembling hardened pitch, formed by weathering of obsidian.
〔地质〕松脂石
Example sentencesExamples
- Also found was a flake of green Arran pitchstone, thought to be a waste fragment from the manufacture of a tool.
- This feature was once described as ‘the finest ‘small’ mountain feature in the British Isles ’, and is in reality an east-west ridge of volcanic rock which appears as a narrow upthrust of columnar pitchstone when seen from the south or east.
- Similarly, Arran pitchstone has turned up in Ireland and Orkney, highlighting the complex exchange networks between these places.

Definition of pitchstone in US English:

pitchstone

nounˈpiCHˌstōn

Geology

A dull vitreous rock resembling hardened pitch, formed by weathering of obsidian.
〔地质〕松脂石
Example sentencesExamples
- This feature was once described as ‘the finest ‘small’ mountain feature in the British Isles ’, and is in reality an east-west ridge of volcanic rock which appears as a narrow upthrust of columnar pitchstone when seen from the south or east.
- Similarly, Arran pitchstone has turned up in Ireland and Orkney, highlighting the complex exchange networks between these places.
- Also found was a flake of green Arran pitchstone, thought to be a waste fragment from the manufacture of a tool.

词汇	pitchstone
释义	Definition of pitchstone in English: pitchstone noun ˈpɪtʃstəʊnˈpiCHˌstōn mass nounGeology A dull vitreous rock resembling hardened pitch, formed by weathering of obsidian. 〔地质〕松脂石 Example sentencesExamples Also found was a flake of green Arran pitchstone, thought to be a waste fragment from the manufacture of a tool. This feature was once described as ‘the finest ‘small’ mountain feature in the British Isles ’, and is in reality an east-west ridge of volcanic rock which appears as a narrow upthrust of columnar pitchstone when seen from the south or east. Similarly, Arran pitchstone has turned up in Ireland and Orkney, highlighting the complex exchange networks between these places. Definition of pitchstone in US English: pitchstone nounˈpiCHˌstōn Geology A dull vitreous rock resembling hardened pitch, formed by weathering of obsidian. 〔地质〕松脂石 Example sentencesExamples This feature was once described as ‘the finest ‘small’ mountain feature in the British Isles ’, and is in reality an east-west ridge of volcanic rock which appears as a narrow upthrust of columnar pitchstone when seen from the south or east. Similarly, Arran pitchstone has turned up in Ireland and Orkney, highlighting the complex exchange networks between these places. Also found was a flake of green Arran pitchstone, thought to be a waste fragment from the manufacture of a tool.
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