blue stone
ریشه و کاربرد
ریشه
The word 'blue' refers to the color of the stone, while 'stone' comes from the Old English 'stān'.
مثال
- The cathedral's facade was adorned with blue stone carvings.
- She wore a necklace with a pendant made of blue stone.
- The blue stone walls of the castle gave it a majestic appearance.
تعریف انگلیسی
noun
- hydrated blue crystalline form of copper sulfate