| TAF | albumose-free tuberculin [Ger. Tuberculin Albumose frei]; tissue angiogenesis factor; toxin-antitoxi... |
|---|---|
| TAT | tetanus antitoxin; thematic apperception test; thematic aptitude test; thrombin-antithrombin complex... |
| ABE | acute bacterial endocarditis; American Board of Endodontics; botulism equine trivalent antitoxin |
| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
| AU | according to custom [Lat. ad usum]; allergenic unit; ngstrom unit; antitoxin unit; arbitrary unit; A... |
| heterologous | <molecular biology> Derived from the tissues or DNA of a different species. Compare: autologous, homologous. (18 Nov 1997) |
|---|---|
| heterologous antiserum | An antiserum that reacts with (e.g., agglutinates) certain microorganisms or other complexes of antigens, even though the antiserum was produced by means of stimulation with a different microorganism or antigenic material. See: homologous antiserum. (05 Mar 2000) |
| heterologous desensitization | Stimulation by one agonist which leads to a broad pattern of unresponsiveness to further stimulation by a variety of other agonists. (05 Mar 2000) |
| heterologous graft | <surgery> A surgical graft of tissue from one species onto or into individuals of unlike species, genus or family. Also know as a heteroplastic graft. See: xenotransplantation. (11 May 1997) |
| heterologous insemination | Artificial insemination with semen from a donor who is not the woman's husband. Synonym: donor insemination. Homologous insemination, artificial insemination with the husband's semen. (05 Mar 2000) |
| heterologous protein | A protein that differs from any protein normally found in the organism in question. Synonym: heterologous protein. (05 Mar 2000) |
| heterologous serotype | An antibody that was induced by one antigen and reacts with another antigen. (05 Mar 2000) |
| heterologous stimulus | A stimulus that acts upon any part of the sensory apparatus or nerve tract. (05 Mar 2000) |
| heterologous tumour | A tumour composed of a tissue unlike that from which it springs. (05 Mar 2000) |
| heterologous twins | Dizygotic twins are siblings who have shared a common uterine environment. They are due to fertilization of two different ova by different sperm. Dizygotic twins are also called fraternal twins. (12 Dec 1998) |
| insemination, artificial, heterologous | Human artificial insemination in which the semen used is that of a man other than the woman's husband. (12 Dec 1998) |
| transplantation, heterologous | Transplantation between animals of different species. (12 Dec 1998) |
| antitoxin | <protein> A purified antiserum from animals (usually horses) immunised by injections of a toxin or toxoid, administered as a passive immunising agent to neutralise a specific bacterial toxin, for example, botulinus, tetanus or diphtheria. (18 Nov 1997) |
| antitoxin rash | A cutaneous manifestation of serum sickness. Astacoid rash, a massive exfoliation, sometimes occurring in malignant smallpox, the colour of which resembles that of a boiled lobster. Black currant rash, the cutaneous eruption of lentigines seen in xeroderma pigmentosum. (05 Mar 2000) |
| antitoxin unit | A unit expressing the strength or activity of an antitoxin; in general, determined with reference to a preserved standard preparation of antitoxin. See: L doses. (05 Mar 2000) |
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