| aPTT | activated Partial Thromboplastin Time |
|---|---|
| LAK T cells | Lymphokine Activated Killer T cells |
| AAK | allo-activated killer |
| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |
| ACAC | acetyl-coenzyme A cocarboxylase; activated charcoal artificial cell |
| implant denture | A denture that receives its stability and retention from a substructure which is partially or wholly implanted under the soft tissues of the denture basal seat. See: implant denture substructure, implant denture superstructure, subperiosteal implant. (05 Mar 2000) |
|---|---|
| implant denture substructure | The metal framework which is placed beneath the soft tissues in contact with, or embedded into, bone for the purpose of supporting an implant denture superstructure. (05 Mar 2000) |
| inflatable implant | An implant consisting of an empty silicone rubber bag with an inlet tube and a valve; after insertion into or behind the breast, the bag is inflated with a liquid to the desired size; used in augmentation mammaplasty. (05 Mar 2000) |
| intraocular implant | A plastic lens placed in the anterior or posterior chamber of the eye to substitute for the lens removed in cataract extraction. (05 Mar 2000) |
| orbital implant | The glass, plastic, or metal device placed in the muscle cone after enucleation of an eye. (05 Mar 2000) |
| testicular implant | A device placed surgically in the scrotum in males with absence or severe hypoplasia of the testis. Synonym: testicular prosthesis. (05 Mar 2000) |
| endo-osseous implant | An implant into alveolar bone inserted through the prepared root canal of a tooth in order to increase effective root length. (05 Mar 2000) |
| endosteal implant | An implant that is inserted into the alveolar and/or basal bone and protrudes through the mucoperiosteum. (05 Mar 2000) |
| triplant implant | A combination of three pin implant's to form a single abutment to support or retain a dental prosthesis. (05 Mar 2000) |
| activated acetaldehyde | The activated form of acetaldehyde that is formed during the decarboxylation of active pyruvate. Formed in alcohol fermentation and in carbohydrate metabolism. Synonym: a-hydroxyethylthiamin pyrophosphate. (05 Mar 2000) |
| activated amino acid | The product formed by the condensation of the acyl radical of an amino acid and adenosine 5'-monophosphate (originally in the form of adenosine 5'-triphosphate, with elimination of a pyrophosphoric group). Formed in the first step of protein biosynthesis. Synonym: activated amino acid. (05 Mar 2000) |
| activated atom | An atom possessing more than normal energy as a result of input of energy. See: excited state. Synonym: excited atom. (05 Mar 2000) |
| activated carboxylic acid | Derivative of a carboxyl group that is more susceptible to nucleophilic attack than a free carboxyl group; e.g., acid anhydrides, thioesters. (05 Mar 2000) |
| activated charcoal | <drug> A type of carbon produced through exposing a source material such as wood or bone to very high temperatures in the presence of steam, air or carbon monoxide. Activated carbon is very good at removing (adsorbing) contaminants and is used in water filters, to decolour solutions and is sometimes administered to poisoning victims. (15 Jan 1998) |
| activated choline | An intermediate in the formation of phosphatidylcholine (lecithin); formed by the action of cytidine 5'-triphosphate on phosphocholine, linking the choline phosphate group to the alpha-phosphate of the cytidine 5'-triphosphate to give a pyrophosphate. Synonym: activated choline, cytidine diphosphate choline. (05 Mar 2000) |