expansion

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Related to expanded: Expanded memory, expanded notation, expanded shale

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 classic literature ?
Know, monseigneur, that in all that relates to my intimate feelings I render account only to God and to my conscience," she concluded, laying her hand on her beautiful, fully expanded bosom and looking up to heaven.
Brooke to write a letter: his only difficulty was to write a short one, and his ideas in this case expanded over the three large pages and the inward foldings.
The man was upon one knee, his back in the angle of the wall, his shoulders elevated to the level of his ears, his hands before his face, palms outward, the fingers spread and crooked like claws; the white face turned upward on the retracted neck had an expression of unutterable fright, the mouth half open, the eyes incredibly expanded.
Anne expanded like a flower under this wholesome influence and carried home to the admiring Matthew and the critical Marilla glowing accounts of schoolwork and aims.
The girlhood of which she had been cheated seemed to come back to her with the ripeness of womanhood; she expanded like a flower of flame and perfume; no laugh was readier than hers, no wit quicker, in the twilight circles of that enchanted summer.
The gases of the powder, expanded by heat, forced back the atmospheric strata with tremendous violence, and this artificial hurricane rushed like a water-spout through the air.
The fantail has thirty or even forty tail-feathers, instead of twelve or fourteen, the normal number in all members of the great pigeon family; and these feathers are kept expanded, and are carried so erect that in good birds the head and tail touch; the oil-gland is quite aborted.
I heard of the difference of sexes, and the birth and growth of children, how the father doted on the smiles of the infant, and the lively sallies of the older child, how all the life and cares of the mother were wrapped up in the precious charge, how the mind of youth expanded and gained knowledge, of brother, sister, and all the various relationships which bind one human being to another in mutual bonds.
A shiny silk hat and a pair of worn gloves lying ready on the end of a long table looked expanded too, enormous.
We can't put up with the innocence of nasty little children," said the great and expanded personage, expanding a little more, as it were.
Time and feeding had expanded that once romantic form; the black silk waistcoat had become more and more developed; inch by inch had the gold watch-chain beneath it disappeared from within the range of Tupman's vision; and gradually had the capacious chin encroached upon the borders of the white cravat: but the soul of Tupman had known no change --admiration of the fair sex was still its ruling passion.
What is the odds so long as the spirit is expanded by means of rosy wine, and the present moment is the least happiest of our existence

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