Exam: IELTS

Definition: In a way that does not make any sound or noise.

Example: She walked silently through the dark room.

Definition: A common compound made of silicon and oxygen, often found in nature as quartz or sand, and used in making glass and concrete.

Example: Silica is a key ingredient in the production of glass.

Definition: A type of compound that includes silicon, oxygen, and one or more metals, often found in minerals and used in materials like glass and cement.

Example: Silicates are commonly used in the production of glass and ceramics.

Definition: Relating to or containing silica, a hard, glassy mineral found in sand and quartz.

Example: The siliceous rocks in the area are known for their durability and resistance to weathering.

Definition: Describing something that is related to or contains silica or silicon.

Example: The silicic acid in the solution helps to strengthen the structure of the material.

Definition: A chemical element that is a non-metal and is commonly used in electronics and computer chips.

Example: Silicium is essential for making semiconductors in electronic devices.

Definition: A chemical element that is a nonmetal and is found in nature, mainly in sand and rocks. It is used in making glass, ceramics, and electronic devices.

Example: Silicon is a key material in the production of computer chips.

Definition: A lung disease caused by breathing in dust from certain minerals, leading to scarring of the lungs and difficulty in breathing.

Example: Workers in the mining industry are at risk of developing silicosis due to prolonged exposure to silica dust.

Definition: Relating to a lung disease caused by inhaling very fine silicate or quartz dust, which leads to inflammation and scarring of the lungs.

Example: Workers in the mining industry are at risk of developing silicotic conditions due to prolonged exposure to silica dust.

Definition: Not serious or showing good sense; often funny or foolish.

Example: The silly joke made everyone laugh.