Ze
- Zeeman Effect
- The splitting of spectral lines when an external magnetic field is applied.
- Zener Diode
- A diode that has been specially designed to break down at a particular voltage.
- Zener Voltage
- reverse voltage at which breakdown occurs in a zener diode.
- Zenith
- Point in the Sky that is directly overhead.
- Zenith Attraction
- The effect of the earth′s gravity on a meteoric body.
- Zenith Distance
- This is for bodies above the horizon and is the arc of a vertical circle between the zenith and a point on the celestial sphere, measured from the zenith through 90 degrees.
- Zenith Telescope
- Instrument for observing stars near the zenith.
- Zenithal
- Of or pertaining to the zenith.
- Zenneck Surface Wave
- A low frequency transverse magnetic surface wave that travels along the interface between the ground and the air, in which the propagating energy does not radiate into space but is concentrated near the guiding surface.
- Zenographic
- Referring to positions on Jupiter.
- Zeolite
- A natural mineral that has the capacity to absorb hardness, calcium, and magnesium ions from water.
- Zeolite Softening
- Refers to the process, where zeolite chemicals are capable to exchange ions with the hardness causing impurities of the water.
- Zeppelin, Ferdinand von
- German general and later airship manufacturer. Most famously the founder of the Zeppelin Airship company.
- Zepto
- Prefix representing a multiplication of 10-21
- Zero
- In 876BC a symbol to represent zero was first used in India.
- Zero Air
- Atmospheric air purified to contain less than 0.1 ppm total hydrocarbons.
- Zero Angle
- An angle whose measure is 0.
- Zero Dimensional
- Having no dimension; a point.
- Zero Divisors
- Nonzero elements of a ring whose product is 0.
- Zero Element
- The element 0 is a zero element of a group if a+0=a and 0+a=a for all elements a.
- Zero Emission Vehicle
- A level of standards for tailpipe emissions.
- Zero g
- The condition when no force (such as weight) is sensed.
- Zero Gravity
- The condition when no force (such as weight) is sensed.
- Zero Insertion Force Socket
- A standard IC-socket design requiring the user to move a lever to insert or remove the chip.
- Zero Kelvin
- At this temperature atoms have no energy.
- Zero Offset
- The output of a sensor at zero input for a specified supply voltage or current.
- Zero Order Reaction
- A reaction with a reaction rate that does not change when reactant concentrations change.
- Zero Point Energy
- A minimum possible energy for an atom or molecule predicted by quantum mechanics.
- Zero-age Main Sequence
- The position on the main sequence of a Hertzsprung-Russell diagram.
- Zeroing
- The process of adjusting a synchro to its electrical zero position.
- Zero-Length Rocket
- A rocket with sufficient thrust to launch a vehicle directly into the air.
- Zero-Lift Chord
- A chord taken through the trailing edge of an airfoil in the direction of the relative wind when the airfoil is at a zero-lift angle of attack.
- Zero-Offset Steering
- A steering system whose geometry has a scrub radius of zero.
- Zero-Point Pressure
- The pressure contributed by degenerate electrons, which do not come to rest even at absolute zero.
- Zeroth Law of Thermodynamics
- If two bodies are each in thermal equilibrium with a third body, then all three bodies are in thermal equilibrium with each other.
- Zeta
- A letter of the Greek alphabet.
- Zeta Machine
- An experimental thermonuclear device which generates a plasma inside a torus and employs the pinch effect for heating and compression.
- Zeta Potential
- Electric potential across all phase boundaries between solids and liquids.
- Zetta
- Prefix representing a multiplication of 1021
- ZEV
- Abbreviation of Zero Emission Vehicle.