FAB
Used to acknowledge that a message has been received and understood.
Entries starting with F
273 entries.
facadism
nounConstruction
a method where the facade is designed and/or constructed independently of the remainder of the rest of the building.
face
The width of a pulley, or the length of a cog from end to end.
facesheet
nounConstruction
A sheet of material serving as an outer face, like those surrounding the core of a sandwich panel.
facework
Work done at the face, such as the coalface.
facing
nounMetalworking
A powdered substance, such as charcoal or bituminous coal, applied to the face of a mould, or mixed with the sand that forms it, to give a fine smooth surface to the casting.
factory head
nounMetalworking
The head formed when a rivet is manufactured, as opposed to the shank (or bucktail), the end of which will be upset to form the field head, after it is inserted through the materials to be connected.
factory second
nounManufacturing
A retail item that, through minor fault of manufacture, is sold to the public for a reduced rate.
factotum
A large decorative printing block with a central space into which any letter can be inserted, used to mark the beginning of a chapter of a book in early printing.
fair
adjectiveManufacturing
Without sudden change of direction or curvature; smooth; flowing; said of the figure of a vessel, and of surfaces, water lines, and other lines.
Fair Isle
A traditional knitting technique used to create patterns with multiple colours.
fall home
verbManufacturing
To curve inward; said of the timbers or upper parts of a ship's side which are much within a perpendicular.
fall plate
A metal plate resting on the cab floor of a steam locomotive, between engine and tender.
fall time
The amount of time taken for the amplitude of a pulse to decrease from a specified value to another specified value.
fallback
nounConstruction
A reduction in bitumen softening point, sometimes called refluxing or overheating, in a relatively closed container.
fallow crop
The crop taken from a green fallow field.
family tree
A grafting technique involving the joining of different varieties of plants onto a single tree or plant.
FAN
nounManufacturing
Initialism of free amino nitrogen, amino acids available for yeast metabolism.
fan car
nounRail equipment
A car used to clean tracks of light debris, to prevent trains slipping on the rails, by blowing air to blow away debris.
fancy stitch
A stitch for decorative or detailing purposes only.
fang
A channel cut or pipe set for the purpose of carrying fresh air to working miners.
fanhouse
The building housing a fan that ventilates a mine.
fanin
The degree to which a component has separate inputs entering it.
fanny pad
An unsprung separate pillion seat on a motorcycle.
far field
The region sufficiently distant from a radio antenna for angular field distribution to be independent of distance.
farmee
A legal entity that contracts part of a mining or oil lease from a farmor in exchange for services.
farmer
The lord of the field, or one who farms the lot and cope of the crown.
farmers' satin
A light material of cotton and worsted, used for coat linings.
farmor
An owner of oil or gas leases that exchanges part of them to a farmee for services.
fascet
nounManufacturing
A wire basket on the end of a rod to carry glass bottles, etc., to the annealing furnace.
fascine
Originally a cylindrical bundle of small sticks of wood, and now often a bundle of plastic pipes, bound together, and used for strengthening purposes, such as in revetments for riverbanks, and in mats for dams, jetties, etc.
fast busy signal
An audible signal on a voice phone line that sounds more frequently than a standard busy signal, indicating that no transmission path to the called phone number is available.
fast telegram
A telegram sent during either the day or night at a full rate for immediate delivery, typically with a minimum charge for 10 words or less.
fat lava
A style of gaudy, vibrant, pottery decoration, common in West Germany from the 1950s to the 1970s.
fat quarter
A square piece of fabric measuring 50 centimetres along each side.
fathomage
The amount of money paid to a miner based on fathoms of material worked.
faucet aerator
nounPlumbing
A device for faucets or taps which mixes air with water to reduce the flowrate.
fault
A point at which something is divided, interrupted, or disconnected.
fault current
An irregularity in an electric current that leads to an electrical fault.
fay
verbManufacturing
Of pieces of timber: to lie close together.
FCD
Initialism of floating car data (“a method to determine the traffic speed on a road network”).
FDD
Initialism of frequency-division duplex.
FDM
nounManufacturing
Initialism of fused deposition modeling: a type of additive manufacturing.
FDR
Initialism of false transmit format detection ratio (in UMTS).
feather
verbCarpentry
To finely shave or bevel an edge.
featherboard
nounWoodworking
A flat grooved piece of wood or other material used to hold the workpiece in position.
feathering strip
One of the tapered wood filler strips placed along the butt ends of old wood shingles to create a relatively smooth surface when reroofing over existing wood shingle roofs.
fed cattle
Cattle leaving a feedlot, after fattening on a concentrated ration, that are ready to be sold to a packinghouse for slaughter.
feed dog
On a sewing machine, the toothed mechanism that uses a forward, down, back, and up motion against the presser foot to advance the fabric through the machine evenly.
feed-through
A hermetically sealed connection between two volumes.
feedback
The part of an output signal that is looped back into the input to control or modify a system.
feeder cattle
Steers or cows that are mature enough to be placed in a feedlot in preparation for slaughter.
feeder station
nounRail equipment
A facility that takes power from the national grid and feeds it to overhead electrification lines on a railway.
feedpoint
The location on an antenna where radio frequency electrical power is applied.
fell
The finer portions of ore, which go through the meshes when the ore is sorted by sifting.
felled seam
A seam made by placing one edge inside a folded edge of fabric, then stitching the fold down. The fold encases the raw edges, which protects them from fraying, and may be secured with a topstitch or a whipstitch.
FEM
Initialism of finite element method.
femtobecquerel
An SI unit of radioactive activity equal to 10⁻¹⁵ becquerels. Symbol: f
femtobel
An SI unit of relative power equal to 10⁻¹⁵ bels. Symbol: f
femtocandela
An SI unit of luminous intensity equal to 10⁻¹⁵ candelas. Symbol: fcd