negative test
31Negative Priming — Pens. Initially, the person picks out the red pen and therefore it is the prime target while the remaining pens in the holder are considered to be prime distractors. When the person wants to use the blue pen (probe target) instead, negative… …
32Negative index metamaterials — A negative index metamaterial causes light to refract, or bend, differently than in more common positive refractive index materials. Negative index metamaterials or negative index materials (NIM) are artificial structures where the refractive… …
33negative — /ˈnɛgətɪv / (say neguhtiv) adjective 1. expressing or containing negation or denial: a negative statement. 2. expressing refusal to do something. 3. refusing consent, as to a proposal. 4. prohibitory, as an order or command. 5. characterised by… …
34negative — 1. Not affirmative; refutative; not positive; not abnormal. 2. Denoting failure of response, absence of a reaction, or absence of an entity or condition in question. [L. negativus, fr. nego, to deny] * * * neg·a·tive neg ət iv …
35Test, Venereal Disease Research Laboratory — A blood test for syphilis. Venereal Disease Research Laboratory is commonly abbreviated VDRL. A negative ( nonreactive ) VDRL is compatible with a person not having syphilis. However, a person may a negative VDRL and still have syphilis since, in …
36Negative frequency — The concept of negative and positive frequency can be as simple as a wheel rotating one way or the other way.[citation needed] A signed value of frequency indicates both the rate and direction of rotation.[citation needed] The rate is expressed… …
37Negative room pressure — Schematic of negative pressure room, showing the inflow, but not outflow, of air from the corridor and other rooms into the negative pressure room used for isolation. Exhaust air is remove via a ventilation system. Negative room pressure is an… …
38Test VIH — L ambassadeur des États Unis contre le Sida, Randall Tobias, faisant publiquement le test VIH en Éthiopie, pour lutter contre la stigmatisation attachée à cette pratique. Un test VIH (par anglicisme, il est parfois appelé test HIV) a pour but de… …
39Test du χ² — Pour la loi de probabilité, voir Loi du χ². Densité du χ² en fonction du nombre de degrés de liberté Le test du χ² (prononcer « khi deux » ou « khi carré », qu on …
40test — test1 [ test ] noun count *** ▸ 1 check of knowledge, etc. ▸ 2 check of body ▸ 3 check of machine ▸ 4 difficult situation ▸ 5 test match in sports ▸ + PHRASES 1. ) a set of written or spoken questions used for finding out how much someone knows… …
