| agger | An eminence, projection, or shallow ridge. Origin: L. Mound (05 Mar 2000) |
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| agger nasi | An elevation on the lateral wall of the nasal cavity lying between the atrium of the middle meatus and the olfactory sulcus; it is formed by the mucous membrane covering the base of the ethmoidal crest of the maxilla. Synonym: nasal ridge. (05 Mar 2000) |
| agger perpendicularis | <anatomy> The prominence on the cranial surface of the auricle corresponding to the triangular fossa. Synonym: eminentia fossae triangularis auricularis, agger perpendicularis, eminentia triangularis. (05 Mar 2000) |
| agger valvae venae | A slight eminence on the external wall of a vein correlating with the valvular sinus immediately proximal to the leaflets of the venous valve. Synonym: agger valvae venae. (05 Mar 2000) |
| agglomerate | 1. A collection or mass. 2. <geology> A mass of angular volcanic fragments united by heat; distinguished from conglomerate. Source: Websters Dictionary (01 Mar 1998) |
| agglomerated | 1. Collected into a ball, heap, or mass. 2. <botany> Collected into a rounded head of flowers. Source: Websters Dictionary (01 Mar 1998) |
| agglomeration | Massing of materials together as in clumping. (18 Nov 1997) |
| agglutinant | A substance that holds parts together or causes agglutination. Origin: L. Ad, to + gluten, glue (05 Mar 2000) |
| agglutinate | 1. United with glue or as with glue; cemented together. 2. <physiology> Consisting of root words combined but not materially altered as to form or meaning; as, agglutinate forms, languages, etc. See: agglutination. Source: Websters Dictionary (01 Mar 1998) |
| agglutinating antibody | 1. An antibody that causes clumping or agglutination of the bacteria or other cells which either stimulated the formation of the agglutinin, or contain immunologically similar, reactive antigen. Synonym: agglutinating antibody, immune agglutinin. 2. A substance, other than a specific agglutinating antibody, that causes organic particles to agglutinate, commonly qualified, e.g., plant agglutinin. (05 Mar 2000) |
| agglutination | <cell biology, haematology> The clumping together of cells due to the binding of agglutinin (a protein) molecules on the surface of each cell. The clumping together of two organisms of the same species for the purpose of sexual reproduction. Often conducted by means of acarbohydrate on one organism and a protein on theother, resulting in a glycoprotein. (06 May 1997) |
| agglutination test | <investigation> A serologic test to demonstrate the presence of antibodies in the blood. It is dependent on the clumping of cells, microorganisms, or particles when mixed with specific antiserum. See: agglutination. (04 Jul 1999) |
| agglutinative | 1. Pertaining to agglutination; tending to unite, or having power to cause adhesion; adhesive. 2. <philosophy> Formed or characterised by agglutination, as a language or a compound. "In agglutinative languages the union of words may be compared to mechanical compounds, in inflective languages to chemical compounds." (R. Morris) "Cf. Man-kind, heir-loom, war-like, which are agglutinative compounds. The Finnish, Hungarian, Turkish, the Tamul, etc, are agglutinative languages." (R. Morris) "Agglutinative languages preserve the consciousness of their roots." (Max Muller) Origin: Cf. F. Agglutinatif. Source: Websters Dictionary (01 Mar 1998) |
| agglutinative thrombus | A translucent colourless plug, partly or wholly filling a capillary or small artery or vein, formed by agglutination of red blood corpuscles. Synonym: agglutinative thrombus. (05 Mar 2000) |
| agglutinin | 1. An antibody that causes clumping or agglutination of the bacteria or other cells which either stimulated the formation of the agglutinin, or contain immunologically similar, reactive antigen. Synonym: agglutinating antibody, immune agglutinin. 2. A substance, other than a specific agglutinating antibody, that causes organic particles to agglutinate, commonly qualified, e.g., plant agglutinin. (05 Mar 2000) |