Z-bar
nounConstruction
A steel bar consisting of a Z-shaped section.
Entries starting with Z
22 entries.
Zagora
A variety of Egyptian cotton.
Zener diode
A semiconductor junction device through which current flows normally in the forward direction, and in the reverse direction if a large voltage is applied.
Zepp antenna
A horizontal antenna which is fed at one end by one lead of a two-wire transmission line.
Zeppelin
A rigid airship dirigible, not restricted to Germany nor the early 20th century.
zeptogram
An SI unit of mass equal to 10⁻²¹ grams. Symbol: zg
zeptojoule
An SI unit of energy equal to 10⁻²¹ joules. Symbol: zJ
zeptoliter
An SI unit of volume equal to 10⁻²¹ liters. Symbol: z
zeptometre
An SI unit of length equal to 10⁻²¹ metres. Symbol: zm
zeptosecond
An SI unit of time equal to 10⁻²¹ seconds. Symbol: zs
zero prefix
The digit 0 that begins all telephone numbers in the United Kingdom, which is substituted for the country code in the event of international calls.
zero-order design
nounSurveying
An optimal network design within a computer. It involves choosing an optimal reference system and revolving it around a certain real number.
zettagram
An SI unit of mass equal to 10²¹ grams. Symbol: Zg
zettahertz
An SI unit of frequency equal to 10²¹ hertz.
zettametre
An SI unit of length equal to 10²¹ metres. Symbol: Zm
zettasecond
An SI unit of time equal to 10²¹ seconds. Symbol: Zs. (= trillions of years, a hypothetical time span that is meaningless except in speculative contexts such as theoretical physics, philosophy, religion, and humorous hyperbole)
zircaloy
nounMetallurgy
Any of a set of specialist alloys of zirconium
ZOH
Initialism of zero-order hold.
zombie car
A vehicle that has missing parts or is generally falling apart due to neglect.
zombie finger
A finger that cannot be recognized by a touchscreen for these reasons.
zoomy
sleek, speedy, streamlined
zweikanter
A type of pebble that has two curved faces formed by wind-blown sand.