expansion

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Related to Gas expansion: Isothermal expansion, Adiabatic expansion

ex·pan·sion

(eks-pan'shŭn),
1. An increase in size as of chest or lungs.
2. The spreading out of any structure (for example, a tendon)).
3. An expanse; a wide area.
[L. ex-pando, pp. -pansus, to spread out]

expansion

/ex·pan·sion/ (ek-span´shun)
1. the process or state of being increased in extent, surface, or bulk.
2. a region or area of increased bulk or surface.

clonal expansion  an immunological response in which lymphocytes stimulated by antigen proliferate and amplify the population of relevant cells.
dorsal digital expansion , extensor expansion extensor aponeurosis; a triangular aponeurotic extension of the digital extensor tendon on the dorsum of the proximal phalanx of each digit, to which the tendons of the lumbrical and interosseous muscles are also attached, forming a movable hood around the metacarpophalangeal joint.

expansion

[ekspan′shən]
Etymology: L, expandere, to spread out
1 the process or state of being increased in extent, surface, or bulk.
2 a region or area of increased bulk or surface.

ex·pan·sion

(eks-pan'shŭn)
1. An increase in size as of chest or lungs.
2. The spreading out of any structure, as a tendon.
3. An expanse; a wide area.
[L. ex-pando, pp. -pansus, to spread out]

ex·pan·sion

(eks-pan'shŭn)
1. An increase in size as of chest or lungs.
2. Spreading out of any structure (e.g., a tendon).
[L. ex-pando, pp. -pansus, to spread out]

expansion,

n an increase in extent, size, volume, or scope.
expansion, delayed (secondary expansion),
n 1. an expansion occurring in amalgam restorations as a result of moisture contamination.
n 2. an expansion exhibited by amalgam that has been contaminated by moisture during trituration or insertion.
expansion, dental arch,
n the therapeutic increase in circumference of the dental arch by buccal or labial movement of the teeth.
expansion, hygroscopic,
n an expansion, caused by absorption of water during setting of an investment, used to compensate for the shrinkage of metal from the molten to the solid state.
expansion, secondary,
n See expansion, delayed.
expansion, setting,
n an expansion that occurs during the setting or hardening of materials such as amalgam and gypsum products.
expansion, thermal,
n an expansion caused by heat. Thermal expansion of the mold is one of the important factors in achieving adequate compensation for the contraction of cast metal when it solidifies.
expansion, thermal coefficient,
n a number indicating the amount of expansion caused by each degree of temperature change. The rate of change in restorative materials and tooth substance should be relatively the same.
References in periodicals archive ?
Ahmed Al Nemah signed the agreement with Bahrain National Gas Expansion Company.
Sami Al Rushaid, chairman and managing director of Kuwait Oil Company, said at the conference Kuwait plans to spend $56 billion in oil and natural gas expansion over the next five years, It intends to increase its oil production capacity to 3.
Among new gas actuated thermometers, the Ashcroft Dura temp and direct drive thermometers use the principle of gas expansion to transmit temperature changes accurately through a gas-filled capillary to a remotely located gauge.
By achieving both a 10 percent reduction in material viscosity as measured by hydraulic injection pressure, as well as a 30 percent reduction in clamp tonnage by using the gas expansion to perform the function that in solid moulding is done by the pack/hold phase, the container was reduced in wall thickness to give a nine percent weight reduction through design and still achieve a four percent density reduction (13 percent total weight reduction).
1 percent in 2012 from a projected 15 percent for this year, as a decades-long gas expansion program winds down.
1 percent in 2012, from a projected 15 percent for this year as the country's decades-long gas expansion program winds down, the Gulf state's development planning authority GSDP said Tuesday.
The first-phase start-up of Karan marks a significant milestone in the company's gas expansion program, underlining its role as a reliable supplier of energy and its ability to bring giant projects online, both critical to meeting the energy needs of the Kingdom.
Besides density reduction and corresponding material savings, the gas expansion helps fill the mold without need for pack or hold phases of the injection cycle.
The Turkish oil and gas industry has been discussing this issue with their foreign counterparts at events such as Oil & Gas Expansion Turkey, a summit which will be held in Ankara from 20-23 September.
The Turkish oil and gas industry has been discussing this issue withtheir foreign counterparts at events such as Oil & Gas Expansion Turkey, asummit which will be held in Ankara from 20-23 September.
BP Accident Imperils Offshore Gas Expansion, At Least Temporarily
While OPEC production quotas are holding back natural gas expansion plans, the UAE is upping output in condensates and natural gas liquids as they are not bound by OPEC quotas, classified as by-products of gas drilling.