extraction


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Related to extraction: Solvent extraction

extraction

 [ek-strak´shun]
1. the process or act of pulling or drawing out.
2. the preparation of an extract.
breech extraction extraction of an infant from the uterus in cases of breech presentation.
flap extraction removal of a cataract by making a flap in the cornea.
menstrual extraction a form of induced abortion in which a flexible cannula is inserted through an undilated cervix for the purpose of removing the fertilized embryo and endometrium. The cannula is attached to a syringe, which is used to aspirate the uterine contents and induce the onset of the “missed period.” This technique is not always effective, and sometimes a second procedure is required. It should be done within two weeks of a missed menstrual period.
serial extraction the selective extraction of primary teeth during an extended period of time to allow autonomous adjustment.
tooth extraction forcible removal of a tooth; called also odontectomy.
vacuum extraction removal of the uterine contents by application of a vacuum, done either for delivery of a viable fetus or for an abortion.

ex·trac·tion

(eks-trak'shŭn),
1. Luxation and removal of a tooth from its alveolus.
2. Partitioning of material (solute) into a solvent.
3. The active portion of a drug; the making of an extract.
4. Surgical removal by pulling out.
5. Removal of the fetus from the uterus or vagina at or near the end of pregnancy, either manually or with instruments.
6. Removal of the product of conception by sucton before a menstrual period has been missed.
[L. extraho, pp. -tractus, to draw out]

extraction

/ex·trac·tion/ (eks-trak´shun)
1. the process or act of pulling or drawing out.
2. the preparation of an extract.

breech extraction  extraction of an infant from the uterus in breech presentation.
flap extraction  extraction of a cataract by an incision which makes a flap of cornea.
serial extraction  the selective extraction of deciduous teeth during an extended period of time to allow autonomous adjustment.
testicular sperm extraction  (TESE) for men with obstructive azoospermia, extraction of spermatozoa directly from the testis through the skin.

extraction

Dentistry See Dental extraction Gynecology See Menstrual extraction.

ex·trac·tion

(eks-trakshŭn)
1. Luxation and removal of a tooth from its alveolus.
2. Partitioning of material (solute) into a solvent.
3. The removal of the active portion of a drug; the making of an extract.
4. Surgical removal by pulling out.
5. Removal of the fetus from the uterus or vagina at or near the end of pregnancy, either manually or with instruments.
6. Removal by suction of the products of conception before a menstrual period has been missed.
[L. ex-traho, pp. -tractus, to draw out]

Extraction

The surgical removal of a tooth from its socket in the bone.

extraction (ek·strakˑ·shn),

n method used to isolate essential oils and other products, such as absolutes, floral waters, resinoids, and tinctures, from plant material. Distillation, hydrodiffusion, expression, solvent extraction, carbon dioxide extraction, enfleurage, and maceration are commonly used extraction methods. See also distillation, hydrodiffusion, expression, enfleurage, and maceration.

ex·trac·tion

(eks-trakshŭn)
1. Luxation and removal of a tooth from its alveolus.
2. Surgical removal by pulling out.
[L. ex-traho, pp. -tractus, to draw out]

extraction,

n the removal of a tooth from the oral cavity by means of elevators and/or forceps.
extraction, serial,
n the extraction of selected primary teeth over a period of years (often ending with removal of the first premolar teeth) to relieve crowding of the dental arches during eruption of the lateral incisors, canines, and premolars.

extraction

1. the process or act of pulling or drawing out.
2. the preparation of an extract.

breech extraction
extraction of a fetus from the uterus in cases of breech presentation.
flap extraction
removal of a cataract by making a flap in the cornea.
extraction forceps
concave beaks to grasp teeth.
vacuum extraction
removal of the contents of a body cavity by application of a vacuum.
References in periodicals archive ?
Classical extraction method including Maceration and Soxhlet extraction approaches required a substantial matter of time and a large amount of solvent.
1-3 Knowledge and information on tooth extraction gives clues about the frequency of dental diseases and availability of dental care.
8226; Minute[TM] Detergent-Free Protein Extraction Kit for Animal Cultured Cells and Tissues
Keywords: Caries, Periodontitis, Restoration failure, Tooth extraction, Oral hygiene.
2] extraction may be costly today, but proponents of green technology see it becoming more economical tomorrow if more companies adopt the technology as they come under governmental pressure to reduce their use of hazardous materials.
The flasks were agitated in a shaking incubator according to the predetermined extraction conditions.
4 ATM of pure oxygen for 90 minutes (excluding pressurization and depressurization time) prior to dental extractions, then an additional 10 dives immediately following extraction of teeth, radical alveolectomy and primary closure.
extraction of facts from press releases related to company and financial information in systems like ATRANS (Lytinen & Gershman, 1986), SCISOR (Jacobs & Rau, 1990), JASPER (Andersen, et al.
Conventional solvent extraction also tends to extract more than the desired compound.
The remaining composite sample was weighed and transferred to the extraction vessel and a volume of extraction fluid (in milliliters) equal to 20 times the mass of the sample (in grams) was added.
Sequence Design, the EDA leader in power-aware SoC design solutions, today announced statistically accurate PVT corner extraction, along with new features to enable a best-of-breed flow for extracting and analyzing power rails in full-custom blocks using Columbus-AMS.
Summary: The extraction of protein from sesame seeds by sodium di-2-ethylhexylsulfosuccinate (AOT)/isooctane reverse micelles system was studied and optimized by response surface methodology (RSM).