| stationary phase | The plateau of the growth curve after log growth in a culture, duringwhich cellnumber remains constant. New cells are produced at the same rate as oldercells die. (09 Oct 1997) |
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| statistic | Any function computed from the values of a random sample, such as the sample mean or median, when considered as a random variable with a known probability distribution. (18 Nov 1997) |
| statistical distributions | The complete summaries of the frequencies of the values or categories of a measurement made on a group of items, a population, or other collection of data. The distribution tells either how many or what proportion of the group was found to have each value (or each range of values) out of all the possible values that the quantitative measure can have. (12 Dec 1998) |
| statistical genetics | The study of the applications of principles of statistics to problems in genetics. (05 Mar 2000) |
| statistical model | A formal representation for a class of processes that allows a means of analyzing results from experimental studies, such as the Poisson model or the general linear model; it need not propose a process literally interpretable in the context of the individual case. (05 Mar 2000) |
| statistical significance | Statistical methods allow an estimate to be made of the probability of the observed degree of association between variables, and from this the statistical significance can be expressed, commonly in terms of the P value. (05 Mar 2000) |
| statistics | The science and art of collecting, summarizing, and analyzing data that are subject to random variation. The term is also applied to the data themselves and to the summarization of the data. (12 Dec 1998) |
| statistics, nonparametric | A class of statistical methods applicable to a large set of probability distributions used to test for correlation, location, independence, etc. In most nonparametric statistical tests, the original scores or observations are replaced by another variable containing less information. An important class of nonparametric tests employs the ordinal properties of the data. Another class of tests uses information about whether an observation is above or below some fixed value such as the median, and a third class is based on the frequency of the occurrence of runs in the data. (12 Dec 1998) |
| statistology | <study> See Statistics. Origin: Statistics. Source: Websters Dictionary (01 Mar 1998) |
| statoacoustic | Relating to equilibrium and hearing. Synonym: vestibulocochlear. Origin: G. Statos, standing, + akoustikos, acoustic (05 Mar 2000) |
| statoacoustic nerve | <anatomy, nerve> The vestibulocochlear nerve is responsible for the sense of hearing and balance (body position sense). Lesions of the eighth nerve can result in deafness, tinnitus, dizziness, vertigo and vomiting. Synonym: cranial nerve VIII. (27 Sep 1997) |
| statoblast | <zoology> One of a peculiar kind of internal buds, or germs, produced in the interior of certain Bryozoa and sponges, especially in the fresh water species; also called winter buds. They are protected by a firm covering, and are usually destined to perpetuate the species during the winter season. They burst open and develop in the spring. In some fresh water sponges they serve to preserve the species during the dry season. Origin: Gr. Standing (i.e, remaining). Source: Websters Dictionary (01 Mar 1998) |
| statoconia | Synonym: statoliths. Origin: L. Fr. G. Statos, standing, konis, dust (05 Mar 2000) |
| statoconial membrane | A gelatinous membrane supported by the hairs of the hair cells of the maculae of the saccule and utriculus of the inner ear; adhering to the surface are numerous crystalline particles called statoconia. Synonym: membrana statoconiorum, otolithic membrane. (05 Mar 2000) |
| statocyst | <zoology> An organ for the perception of gravity and thus body orientation, found in many invertebrate animals, a cavity lined with sensory cells and containing a statolith. (20 Mar 1998) |