| aspermatogenic sterility | Sterility due to a failure to produce living spermatozoa. (05 Mar 2000) |
|---|---|
| male sterility | The inability of the male to fertilise the ovum; it may or may not be associated with impotence. (05 Mar 2000) |
| hybrid sterility | <genetics, zoology> The inability of a hybrid to produce viable offspring. Whether an animal hybrid is sterile or fertile depends mainly on how closely its two parent species are related. For example: mules (which are hybrids between male donkeys and female horses) are usually sterile, while hybrids between domestic dogs and wolves are fertile (hybrids between wolves and foxes are also fertile, but hybrids between dogs and foxes are sterile). (09 Oct 1997) |
| sterility | 1. The inability to produce offspring, i.e., the inability to conceive (female sterility) or to induce conception (male sterility). 2. The state of being aseptic or free from microorganisms. Origin: L. Sterilitas (13 Nov 1997) |
| normospermatogenic sterility | Male sterility due to some cause other than failure to produce live, normal spermatozoa, e.g., blockage of the seminiferous passages. (05 Mar 2000) |
| dysspermatogenic sterility | Male sterility due to some abnormality in production of spermatozoa. (05 Mar 2000) |
| female sterility | The inability of the female to conceive, due to inadequacy in structure or function of the genital organs. Synonym: infecundity. (05 Mar 2000) |
| allergy testing | <investigation> A common method of screening a patient for potential allergies. May be given as a patch or a skin test (injection). (27 Sep 1997) |
| animal testing | <pharmacology> Before researchers test pharmaceuticals in human clinical trials, they test them in animals to determine toxicity, dosing, and efficacy. What they learn in animal models helps them determine if it is safe and worthwhile to proceed to human trials, and how best to design those trials. (14 Nov 1997) |
| animal testing alternatives | Procedures, such as tissue culture, mathematical models, etc., when used or advocated for use in place of the use of animals in research or diagnostic laboratories. (12 Dec 1998) |
| anonymous testing | Testing in which no name is used there is total anonymity to identify the person tested. For example, the State of Florida requires that each county have a site for anonymous HIV testing. (12 Dec 1998) |
| bench testing | Testing of a device against specifications in a simulated (nonliving) environment. (05 Mar 2000) |
| mandatory testing | Testing or screening required by federal, state, or local law or other agencies for the diagnosis of specified conditions. It is usually limited to specific populations such as categories of health care providers, members of the military, and prisoners or to specific situations such as premarital examinations or donor screening. (12 Dec 1998) |
| reality testing | The individual's objective evaluation of the external world and the ability to differentiate adequately between it and the internal world; considered to be a primary ego function. (12 Dec 1998) |
| gene testing | Testing a sample of blood (or another fluid or tissue) for evidence of a gene. The evidence can be biochemical, chromosomal, or genetic. The aim is to learn whether a gene for a disease is present or absent. (12 Dec 1998) |