Definition: The part of the body of certain insects, especially ants, that is located behind the waist and contains the digestive organs.

Example: The gaster of the ant is crucial for its digestion and reproduction.

Definition: Not allowing gas to pass through; completely sealed against gas.

Example: The container is designed to be gastight to prevent any gas leaks.

Definition: The state or quality of being sealed so that gas cannot escape or enter.

Example: The gastightness of the container ensures that no gas can leak out during the experiment.

Definition: Relating to a system that serves both digestive and circulatory purposes, often found in certain simple animals like jellyfish.

Example: The gastrovascular cavity of the jellyfish helps in both digestion and the distribution of nutrients.

Definition: A stage in early embryonic development that comes after the blastula, characterized by a hollow structure with two layers of cells that will develop into different tissues.

Example: The gastrula stage is crucial for the proper formation of the embryo's organs and systems.

Definition: To develop into a specific stage in embryonic development where the cells form a gastrula, which is a structure that will eventually lead to the formation of different tissues and organs.

Example: During the early stages of development, the embryo will gastrulate to form the basic layers of cells.

Definition: The process in early development where a single-layered embryo transforms into a multi-layered structure called a gastrula.

Example: During gastrulation, the cells of the embryo begin to organize into different layers that will develop into various tissues and organs.

Definition: A unit of measurement for magnetic flux density in the centimeter-gram-second system, equivalent to one maxwell per square centimeter.

Example: The magnetic field strength was measured in gauss.

Definition: A small device used to create carbonated drinks by adding carbon dioxide to water or other liquids.

Example: He used a gazogene to make fresh soda at home.

Definition: A circular object with teeth around its edge that is used to transmit motion or force in machines.

Example: The mechanic replaced the broken gearwheel in the engine.