Definition: A type of antenna that is designed to send or receive radio and television signals in a specific direction, featuring a horizontal bar with several smaller antennas attached to it.

Example: The technician installed a yagi on the roof to improve the television signal reception.

Definition: A type of uranium concentrate that is produced during the processing of uranium ore, often used in the production of nuclear fuel or weapons.

Example: The scientists analyzed the yellowcake to determine its purity and suitability for further processing.

Definition: A type of matter that is believed to have existed before the creation of chemical elements, according to the big bang theory.

Example: Scientists study ylem to understand the conditions of the early universe.

Definition: A type of chemical weapon that is a yellowish gas, known for causing severe injuries and damage to the skin and lungs.

Example: During World War I, yperite was used as a chemical weapon in battles.

Definition: A chemical element with the symbol Yb and atomic number 70, belonging to the lanthanide series of the periodic table.

Example: Ytterbia is used in various applications, including electronics and materials science.

Definition: Relating to a chemical element called ytterbium, or containing this element.

Example: The ytterbic compound was used in advanced materials research.

Definition: A soft, silvery metal that is part of the rare-earth elements, used in various applications like lasers and alloys.

Example: Ytterbium is used in some types of lasers and as an x-ray source.

Definition: A chemical compound made from yttrium and oxygen, often used in various industrial applications.

Example: Yttria is commonly used in the production of phosphors for color television tubes.

Definition: Relating to or derived from a chemical element called yttrium, which is used in various materials and applications.

Example: The yttric compounds are essential in the production of certain types of glass and ceramics.

Definition: A shiny, silver-colored metal that is found in many minerals and is used in making strong alloys and special materials like lasers.

Example: Yttrium is often used in the production of high-performance lasers and superconductors.