proactive inhibition |
The state or process hypothesised to account for poorer learning rate for elements later in a series as compared to the learning rate for elements coming earlier in a series. (12 Dec 1998) |
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proadifen |
<chemical> Alpha-phenyl-alpha-propylbenzeneacetic acid, 2-(diethylamino)ethyl ester. An inhibitor of drug metabolism and cytochrome p-450 activity. Pharmacological action: enzyme inhibitors. Chemical name: Benzeneacetic acid, alpha-phenyl-alpha-propyl-, 2-(diethylamino)ethyl ester (12 Dec 1998) |
proaemial |
Synonym: prodromal. Origin: L. Prooemium, fr. G. Prooimion, prelude (05 Mar 2000) |
proal |
Relating to a forward movement. (05 Mar 2000) |
proalbumin endoproteinase |
<enzyme> Calcium-dependent endopeptidase from golgi membrane fractions of rat liver; pH optimum 6.0; specific for carboxyl side of paired basic residues (arg-arg and lys-arg) in proalbumin and proparathyroid hormone Registry number: EC 3.4.21.- (26 Jun 1999) |
proamnion |
An area of the extraembryonic membranes beneath, and in front of, the developing head of a young embryo which remains without mesoderm for some time. (05 Mar 2000) |
proatlas |
<anatomy> A vertebral rudiment in front of the atlas in some reptiles. Origin: Pref. Pro- + atlas. Source: Websters Dictionary (01 Mar 1998) |
probabilist |
1. One who maintains that certainty is impossible, and that probability alone is to govern our faith and actions. 2. One who maintains that a man may do that which has a probability of being right, or which is inculcated by teachers of authority, although other opinions may seem to him still more probable. Origin: Cf. F. Probabilists. Source: Websters Dictionary (01 Mar 1998) |
probability |
Origin: L. Probabilitas: cf. F. Probabilite. 1. The quality or state of being probable; appearance of reality or truth; reasonable ground of presumption; likelihood. "Probability is the appearance of the agreement or disagreement of two ideas, by the intervention of proofs whose connection is not constant, but appears for the most part to be so." (Locke) 2. That which is or appears probable; anything that has the appearance of reality or truth. "The whole life of man is a perpetual comparison of evidence and balancing of probabilities." (Buckminster) "We do not call for evidence till antecedent probabilities fail." (J. H. Newman) 3. <mathematics> Likelihood of the occurrence of any event in the doctrine of chances, or the ratio of the number of favorable chances to the whole number of chances, favorable and unfavorable. See 1st Chance. Synonym: Likeliness, credibleness, likelihood, chance. Source: Websters Dictionary (01 Mar 1998) |
probability curve |
A graph of the gaussian (normal) distribution representing relative probabilities. (05 Mar 2000) |
probability learning |
Usually refers to the use of mathematical models in the prediction of learning to perform tasks based on the theory of probability applied to responses; it may also refer to the frequency of occurrence of the responses observed in the particular study. (12 Dec 1998) |
probability sample |
Each individual in the sample has a known, generally equal, chance of being selected. (05 Mar 2000) |
probability theory |
The branch of mathematics dealing with the purely logical properties of probability. Its theorems underlie most statistical methods. (12 Dec 1998) |
probably |
In a probable manner; in likelihood. "Distinguish between what may possibly and what will probably be done." (L'Estrange) Source: Websters Dictionary (01 Mar 1998) |
probacteriophage |
The stage of a temperate bacteriophage in which the genome is incorporated in the genetic apparatus of the bacterial host. Synonym: prophage. (05 Mar 2000) |