open assembly time
nounWoodworking
The measure of time commencing from the application of an adhesive on a substrate until it is assembled without the loss of bonding strength.
Entries starting with O
163 entries.
open differential
A type of differential gear used in automobile construction, allowing for output shafts to have different angular velocity, while equalizing torque applied to each output shaft.
open time
nounConstruction
The period of time after an adhesive has been applied and allowed to dry, during which an effective bond can be achieved by joining the two surfaces.
open valley
nounConstruction
a method of valley construction in which the steep-slope roofing on both sides are trimmed along each side of the valley, exposing the metal valley flashing.
open wagon
nounRail equipment
An uncovered vehicle used for goods that do not need protection from the weather, although tarpaulins can be used to cover the load.
open-field system
The prevalent agricultural system in much of Europe during the Middle Ages, in which each manor or village had two or three large fields divided into narrow strips of land individually cultivated by tenants or serfs.
openband
adjectiveManufacturing
Right-handed or "Z shaped", with individual fibers pointing up and to the right when the thread, yarn, or rope is vertical.
opened-toe
adjectiveTextile production
(of a foot of a sewing machine) that does not have its front area cut away (opposite of closed-toe) https://books.google.com/books?id=5W-ChoTedM4C&pg=PA128&dq=%22closed-toe%22&hl=en&sa=X&ved=0CC4Q6AEwADgKahUKEwjEiNe5j-nIAhVFLYgKHRv-Abw#v=onepage&q=%22closed-toe%22&f=false
opener
nounMetalworking
A person employed to separate sheets of hot metal that become stuck together.
operating time
The time interval between the instant a request for service is received from a user and the instant of final release of all facilities by the user or either of two users.
operator
The company that operates a mine; often the same one that owns the mine.
OPOC
nounAutomotive
Abbreviation of opposed cylinder.
opposed cylinder
nounAutomotive
A type of engine cylinder, with two pistons, horizontally opposed with each other, and the combustion chamber sitting centrally between the two pistons.
OPRAF
nameRail equipment
Initialism of Office of Passenger Rail Franchising.
optic
adjectiveOptics and imaging
Of, or relating to optics or optical instruments.
optical axis
An imaginary line within an optical system around which there is rotational symmetry.
optical disc
A modern data storage medium consisting of a flat disc read mechanically by illumination with laser light, including the Laserdisc, compact disc, DVD, and Blu-ray.
optical drive
A drive that reads optical media.
optical flat
A disk of high-quality quartz glass having at least one side ground and polished with a deviation in flatness less than 50 nanometers all over, and a surface quality of 5 microfinish or less; used, in an interferometer, to measure the flatness of other surfaces.
optical switch
A switch that can selectively change signals between optical fibers or integrated optical circuits.
optomechanics
The design and manufacture of precision mechanical components of optical devices
OR gate
A logic gate performing a Boolean logic OR operation.
orange peel
nounManufacturing
An uneven surface resembling orange peel, especially cellulite or an imperfect finish on a spray-painted object such as a car.
order
A power of polynomial function in an electronic circuit’s block, such as a filter, an amplifier, etc.
ore car
An open-top bulk material car of heavy construction for carrying dense ores, usually emptying through one or more hoppers.
orefield
land from which ore is mined
organic
adjectiveAgricultural equipment
Of food or food products, grown in an environment free from artificial agrichemicals, and possibly certified by a regulatory body.
organic farming
An approach to farming based on biological methods that avoid the use of synthetic crop or livestock production inputs and on a broadly defined philosophy of farming that puts value on ecological harmony, resource efficiency, and non-intensive animal husbandry practices.
Orleans
A cloth made of worsted and cotton, used for making clothes.
orograph
nounSurveying
A machine for use in making topographical maps, operated by being pushed across country, and recording distances and elevations.
orthoamphibolite
Metamorphic rock composed mostly of amphibole, plagioclase, with lesser amounts of epidote, zoisite, chlorite, quartz, titanite, and accessory leucoxene, ilmenite and magnetite derived from an igneous rock.
orthographically
adverbManufacturing
Using an orthographic projection (a way of showing three-dimensional objects in two-dimensional engineering drawings).
orthomagmatic
adjectiveMining and extraction
Relating to the main phase of crystallisation of magma.
orthometric
adjectiveSurveying
Being corrected for the curvature of the Earth.
orthostereoscopic
adjectiveOptics and imaging
That produces a three-dimensional image free from distortion
orthostereoscopy
The production of a three-dimensional image free from distortion
OS&Y
Initialism of outside stem and yoke valve.
OSS
Initialism of operations/operational support system.
OST
Initialism of Outer Space Treaty: a treaty that represents the basic legal framework of international space law, signed in 1967.
OTA
Initialism of operational transconductance amplifier.
OTP
adjectiveIndustrial electronics
Initialism of one-time programmable.
ottoman
nounManufacturing
A fabric with a pronounced ribbed or corded effect, often made of silk or a mixture of cotton and silk-like yarns.
Ouija board
A tabletop model of the individual aircraft and their locations on a carrier.
ounging
The process of assisting logs in their downstream motion by pushing them through the water.
out
A word or words omitted by the compositor in setting up copy; an omission.
out of gauge
prep phraseRail equipment
Of rail vehicles, or loads carried on freight vehicles: where dimensions exceed the loading gauge or structure gauge for a particular line or route.
out of sorts
With some letters or sorts of type deficient or exhausted in the case or font.
out-of-band
adjectiveElectrical engineering
Taking place outside of a defined telecommunications frequency band.
out-of-band signaling
A type of transmission technology in which signaling is separate from the data being transmitted, using one or more channels for transmitting data or voice information and one out-of-band channel for performing signaling functions.
out-of-battery
adjectiveElectrical engineering
In battery-powered electronics, devoid of any power.
outbond
adjectiveConstruction
Of a brick or stone: laid with its length parallel to the face of the wall.
outbrake
verbAutomotive
From a given speed, to stop in a shorter distance than.
outbye
adverbMining and extraction
In the direction away from the coal face.
outcropper
One who obtains coal from an outcrop, at or close to the surface.
outfield
Arable land continually cropped without being manured.
outplant
To plant outdoors (after rearing in a greenhouse etc.).
output
That which is produced by something, especially that which is produced within a particular time period or from a particular effort.
outrun
A piece of outlying grazing land on an arable farm.
OV
Initialism of orbiter vehicle.
over square
adjectiveAutomotive
Of an internal combustion engine design, in which the diameter of the piston is greater than its stroke distance.