Definition: The outer layer of a developing embryo that eventually forms the skin and nervous system.

Example: During early development, the epiblast plays a crucial role in forming the ectoderm.

Definition: Describing a process or growth that involves covering or growing over something, often used in biological contexts.

Example: The epibolic movement of cells is crucial during the early stages of embryonic development.

Definition: The process where a group of fast-growing cells surrounds a group of slower-growing cells, often seen during the early stages of development in embryos.

Example: During embryonic development, epiboly allows the cells to spread and cover the surface of the embryo.

Definition: A clear, colorless liquid that is used as a solvent in the production of resins and other chemicals.

Example: Epichlorohydrin is commonly used in the manufacturing of epoxy resins.

Definition: A small circle that moves along the edge of a larger circle, often used in ancient astronomy to explain the orbits of planets around the Earth.

Example: In ancient astronomy, the concept of an epicycle was used to describe the complex movements of planets.

Definition: Relating to a type of circular motion where a smaller circle moves around the circumference of a larger circle.

Example: The epicyclic gears in the clock allow for precise timekeeping.

Definition: A specific type of curve created by a point on the edge of a circle as it rolls around the outside of another fixed circle.

Example: The mathematician demonstrated how to draw an epicycloid using a simple compass and pencil.

Definition: Related to a specific type of curve formed by the path traced by a point on the circumference of a circle that rolls around the outside of another circle.

Example: The gears in the machine were designed using epicycloidal shapes to improve efficiency.

Definition: A device used to show images from opaque objects or transparent slides onto a screen.

Example: The teacher used an epidiascope to display the artwork to the entire class.

Definition: A shiny mineral that can be yellow, green, or black, often found in metamorphic rocks and sometimes used as a gemstone.

Example: The geologist collected a sample of epidote from the mountain.