Exam: GRE (Verbal)

Definition: A word, sound, or symbol that represents an idea or concept in language.

Example: In linguistics, the word 'tree' is a signifier that represents the concept of a tree.

Definition: To have a meaning or to represent something important.

Example: The red light signifies that you must stop.

Definition: To represent or indicate something; to have a particular meaning.

Example: The red light signifies that you must stop.

Definition: A type of chemical compound made of silicon and hydrogen, similar to hydrocarbons, with the general formula SiH.

Example: Silane is often used in the production of silicone materials.

Definition: Made quiet or unable to make noise.

Example: The silenced gun was used for stealthy operations.

Definition: To make someone unable to speak or express themselves, often by force or pressure.

Example: The loud noise silenced the crowd, making it impossible to hear anything else.

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 compound that consists of silicon combined with another element or group, typically involving a more electropositive element.

Example: Silicides are often used in semiconductor technology due to their unique electrical properties.

Definition: The process of being filled or replaced with silica, often leading to the hardening of materials like wood or bone into a stony substance.

Example: The silicification of the wood turned it into a fossil over millions of years.