[poz-i-tiv-i-tee] /ˌpɒz ɪˈtɪv ɪ ti/
noun, plural positivities.
the state or character of being : a positivity that accepts the world as it is.
1650s, from positive (adj.) + -ity.
[poz-i-tron] /ˈpɒz ɪˌtrɒn/ noun, Physics. 1. an elementary particle having the same mass and spin as an but having a charge equal in magnitude to that of the negative charge; the antiparticle of the . /ˈpɒzɪˌtrɒn/ noun 1. (physics) the antiparticle of the electron, having the same mass but an equal and opposite charge. It […]
noun 1. the process of producing a PET scan. noun 1. a technique for assessing brain activity and function by recording the emission of positrons from radioactively labelled substances, such as glucose or dopamine positron emission tomography n. Abbr. PET Tomography in which a computer-generated image of local metabolic and physiological functions in tissues is […]
[poz-i-troh-nee-uh m] /ˌpɒz ɪˈtroʊ ni əm/ noun, Physics. 1. a short-lived atomic system consisting of a positron and an electron bound together. /ˌpɒzɪˈtrəʊnɪəm/ noun 1. (physics) a short-lived entity consisting of a positron and an electron bound together. It decays by annihilation to produce two or three photons
Portable Operating System Interface Portable Operating System Interface for UNIX