Dictionary Suite (unified)

Tech Dictionary

Lexicon:
Keyword:
Found 37 records.
Ablation Sci Rocket
The removal of material from the surface of an object by vaporization, chipping, or other erosive processes; used in heat shields to protect spacecraft during re-entry
Aerodynamics Sci Rocket
The study of the motion of air, particularly when it interacts with a solid object, such as a rocket in flight
Apogee Sci Rocket
The point in the orbit of an object orbiting the earth that is at the greatest distance from the center of the earth
Ballistics Sci Rocket
The science of projectiles and firearms
Booster Sci Rocket
The first stage of a multistage rocket, or an auxiliary rocket used to provide additional thrust at liftoff
Cryogenic Sci Rocket
Relating to or involving the production or behavior of materials at very low temperatures; often refers to liquid fuels like liquid hydrogen and liquid oxygen
Delta-v Sci Rocket
A measure of the impulse per unit of spacecraft mass that is needed to perform a maneuver such as launch from or landing on a planet or moon, or an in-space orbital maneuver
Escape Velocity Sci Rocket
The lowest velocity which a body must have in order to escape the gravitational attraction of a particular planet or other object
Fairing Sci Rocket
A structure on a launch vehicle used to protect the payload during atmospheric flight
Gimbal Sci Rocket
A pivoted support that allows the rotation of an object about a single axis; used in rocket engines to vector thrust for steering
Gravity Turn Sci Rocket
A maneuver used in launching a spacecraft into, or descending from, an orbit around a celestial body
Hohmann Transfer Sci Rocket
An orbital maneuver used to transfer a spacecraft between two circular orbits of different radii around a central body in the same plane
Hypergolic Sci Rocket
Propellants that ignite spontaneously upon contact with each other
Ignition Sci Rocket
The process of starting the combustion of propellants in a rocket engine
Kármán Line Sci Rocket
The altitude of 100 kilometers (62 miles) above Earth's sea level, commonly representing the boundary between Earth's atmosphere and outer space
Lift-off Sci Rocket
The vertical take-off of a rocket or spacecraft
Lithobraking Sci Rocket
A humorous term for a landing technique that uses the ground (lithos) to stop the vehicle, usually implying a crash
Mach Number Sci Rocket
The ratio of the speed of a body to the speed of sound in the surrounding medium
Max Q Sci Rocket
The point of maximum dynamic pressure on a spacecraft during atmospheric flight
MECO (Main Engine Cut Off) Sci Rocket
The point in a launch sequence when the main engines of the rocket are shut down
Nozzle Sci Rocket
A spout or jet used to accelerate hot exhaust gases to produce thrust
Orbit Sci Rocket
The curved path of a celestial object or spacecraft around a star, planet, or moon
Oxidizer Sci Rocket
A chemical that provides oxygen for the combustion of fuel in a rocket engine
Payload Sci Rocket
The cargo carried by a rocket, which may include satellites, scientific instruments, or crew
Perigee Sci Rocket
The point in the orbit of an object orbiting the earth that is nearest to the center of the earth