nip point
nounManufacturing
A point of convergence between two rolling parts, or a rolling part and a stationary part, where all or part of the human body could become trapped and injured.
Entries starting with N
102 entries.
nip-out
The situation where the roof and thill approach each other, diminishing the usual thickness of the coal seam or extinguishing it completely.
nipple
nounPlumbing
A short tube threaded at both ends, used as a connector.
nitrile rubber
nounConstruction
a membrane whose predominant resinous ingredient is a synthetic rubber made by polymerization of acrylonitrile with butadiene.
nitrous
The system in some racing vehicles which pumps nitrous oxide into the engine to improve performance.
nitrox
nounMetallurgy
An industrial process for case hardening (imparting greater surface hardness to) metal objects, involving nitrocarburizing (the diffusion of carbon and nitrogen into the metal) followed by oxidation.
Nixie tube
An obsolete electronic device for displaying numerals or other information by means of glow discharge.
nMOSFET
A type of metal, oxide, semiconductor field-effect transistor (MOSFET) that utilizes an n-type channel, conducting when a voltage voltage exceeding a threshold is applied to the gate relative to the source. It is commonly used in complementary metal, oxide, semiconductor (CMOS) technology alongside pMOSFETs.
NO
adjectivePlumbing
Initialism of normally open.
no-go
adjectiveManufacturing
That should not go (i.e., enter or engage) if the size of the part being measured is properly achieved.
no-till
A technique for growing crops or pasture without disturbing the soil through tillage.
nodal analysis
A method of solving for the voltages of nodes in an electric circuit, in which a system of equations is written for the currents (using Kirchhoff's current law) at each node.
node
A region of an electric circuit connected only by (ideal) wires (i.e. the voltage between any two points on the same node must be zero).
nog
One of the square logs of wood used in a pile to support the roof of a mine.
nogging
nounCarpentry
A horizontal beam used in the construction of a building, especially to strengthen upright posts.
non-essential prime implicant
On a Karnaugh map: a prime implicant which does not cover any 1 which cannot covered by some other prime implicant.
non-op
A nonoperator; a rail worker not directly involved in the mechanical operation of trains.
nondrying
adjectiveManufacturing
Of a garment, not requiring use of a dryer after washing.
nonfriable
nounConstruction
A material that, when dry, cannot be crumbled, pulverized or reduced to powder by hand pressure.
nonode
A thermionic valve that has nine internal electrodes (typically including seven grids)
noodler
A fossicker, someone who scours mine dumps for valuables.
NOR gate
A logic gate performing a Boolean logic NOR operation.
normal mode
A mode of an oscillating system in which all parts of the system move sinusoidally with the same frequency and with a fixed phase relation. The motion described by the normal modes is called resonance.
normalize
verbMetallurgy
To anneal (steel) for the purpose of decreasing brittleness and increasing ductility.
north forty
A 40-acre section of land, located in the northernmost part of a farm or ranch.
north pole
The positive pole of a magnetic dipole that seeks geographic north.
Norton's theorem
A theorem which states that any electric circuit between two terminals containing only resistors, voltage sources, and current sources can be equivalently replaced with a single current source and resistor in parallel.
Norwegian coupling
nounRail equipment
A manually operated coupling at each end of some narrow-gauge railway rolling stock, consisting of a central buffer incorporating a hook that drops into a slot in the opposing central buffer.
nose bit
nounCarpentry
A bit similar to a gouge bit, but having a cutting edge on one side of its boring end.
nosehole
nounManufacturing
A small opening in a furnace, before which a globe of crown glass is held and kept soft at the beginning of the flattening process.
nostepinne
A tool used to wind yarn into a ball for use in knitting, crocheting, or weaving.
NOT gate
A logic gate performing a Boolean-logic NOT operation.
notch
A portion of a mobile phone that overlaps the edge of the screen, used to house a camera, sensors etc. while maximizing screen space.
notchboard
nounCarpentry
The board that receives the ends of the steps in a staircase.
NTIDS
Initialism of Nutt time-interval digitizer.
nuclear hydrogen detection meter
A device that contains a radioactive source to emit high velocity neutrons into a roof system. Reflecting neutrons are measured by a gauge that is used to detect hydrogen; the quantity of hydrogen detected may be linked to the pressure of water.
nuclear magneton
The unit of magnetic moment used to describe nucleons such as the proton.
nucleus
A small bee-hive used to create a colony from a larger existing one.
nulled work
ornamental turned woodwork resembling beads strung on a rod
nun's thread
A specific type of fine, white sewing thread historically associated with the needlework of nuns.
NVRAM
Initialism of non-volatile random access memory.
NWT
nameManufacturing
Initialism of new with tags.