Entries starting with O

163 entries.

over the top

Downward onto plants in the field, as contrasted with other routes of administration.

overbore

To bore out more than is usual for the design; especially, to bore out to a degree that pushes the limit regarding the wall thickness of the casting.

overbuilder

nounElectrical engineering

A company that uses or builds on an existing telecommunications operator’s network (which includes telco and cable networks). These are often associated with advanced fiber-optic networks.

overbust

nounTextile production

The circumference of a woman's chest, measured over the breasts.

overcast

nounMining and extraction

A place where one roadway crosses another, specifically where an airway was built across the top of another airway for ventilation purposes.

overcurrent protective device

nounIndustrial supplies, equipment, and components

A device, usually a fuse, polyfuse, or circuit breaker, intended to detect and stop an overcurrent condition.

overcutter

nounIndustrial supplies, equipment, and components

A device used to cut into rock walls from above.

overdrive

nounMechanical engineering

A gear ratio higher than 1:1: one in which a single revolution of the driving element corresponds to more than one revolution of the driven element.

overfire

verbIndustrial ceramics

To fire at a high (or excessively high) temperature.

overfired

adjectiveIndustrial ceramics

Fired at a high (or excessively high) temperature.

overfogged

adjectiveOptics and imaging

Having a focal point that is in front of the retina or observer; myopic.

overfrequency

nounEnergy and utilities

The condition where the frequency of an electrical supply rises above normal parameters.

overhand

adjectiveConstruction

Laid such that the surface of the wall to be jointed is on the opposite side of the wall from the mason, requiring the mason to lean over the wall to complete the work.

overhaul

nounIndustrial safety

The process after the fire appears extinguished in which the firefighters search the structure for signs of hot spots that may cause the structure to reignite.

overhead cam

nounIndustrial supplies, equipment, and components

A type of cam (and camshaft) in an internal combustion engine, and thus also (metonymic) the type of valvetrain design, the type of engine that uses it, or an instance of such an engine; this design has the inlet and exhaust valves in the cylinder head and has the camshaft(s) up above the valves too.

overhead valve

nounIndustrial supplies, equipment, and components

A type of valve in an internal combustion engine, and thus also (metonymic) the type of valvetrain design, the type of engine that uses it, or an instance of such an engine; this design has the inlet and exhaust valves in the cylinder head (and therefore above the piston). The camshaft can be beside the pistons (with pushrods and rockers operating the valves) or above the valves, with the latter usually referred to as overhead cam.

overkill

nounManufacturing

An unnecessary excess of disposal because of too high criteria of inspection.

overland

nounTransport and logistics

A trip by land between the UK and the Indian subcontinent or Australia, or between the UK and South Africa.

overlanded

adjectiveMarine and shipyard

Exceeding the originally declared shipped quantity.

overlaunch

verbManufacturing

To run the butts or scarphs of planks or pieces of timber to a certain distance beyond the adjacent ones, in order to strengthen the work.

overlay

nounIndustrial printing

A piece of paper pasted upon the tympan sheet to improve the impression by making it stronger at a particular place.

overload

nounAutomotive

An load of goods above the prescribed carrying weight of the vehicle.

overlock

nounManufacturing

A stitch that sews over the edge of one or two pieces of cloth for edging, hemming or seaming.

overmatter

nounIndustrial printing

Typeset material that proves to be surplus to requirements.

overpole

verbMetallurgy

To pole excessively.

overprint

verbIndustrial printing

To overlap different colours to avoid gaps.

overpulse

nounEnergy and utilities

An electric pulse that spikes above normal operating levels.

overrefraction

nounOptics and imaging

Excessive refraction (due to a lens defect)

overrun

verbIndustrial printing

To carry (some type, a line or column, etc.) backward or forward into an adjacent line or page.

overseamer

nounManufacturing

A machine for overseaming.

overset

verbIndustrial printing

To set (copy or type) in excess of a given space.

oversheet

verbConstruction

To put cladding over (a roof).

overshift

nounMechanical engineering

A misalignment resulting from shifting gears too far.

overshot

nounManufacturing

A pattern resulting from a plainweave ground fabric and floats of supplemental weft, associated with coverlets in the colonial United States.

oversite

nounConstruction

A layer of concrete underneath the ground floor of a building, as a seal

oversize

nounAutomotive

The increased size of the bore of an engine when it is rebored.

overspeed

verbMechanical engineering

To operate an engine or machine too fast.

overspray surface texture

nounConstruction

In SPF roofing, a condition of the foam in which the surface shows a linear course textured pattern and/or a pebbled surface. This surface is generally downwind of the sprayed polyurethane path and, if severe, unacceptable for proper coating and protection.