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  • Zero-point energy — is the lowest possible energy that a quantum mechanical physical system may have; it is the energy of its ground state. All quantum mechanical systems undergo fluctuations even in their ground state and have an associated zero point energy, a… …   Wikipedia

  • Zero-based numbering — is numbering in which the initial element of a sequence is assigned the index 0, rather than the index 1 as is typical in everyday circumstances. Under zero based numbering, the initial element is sometimes termed the zeroth element, rather than… …   Wikipedia

  • zero — [zir′ō, zē′rō] n. pl. zeros or zeroes [Fr zéro < It zero < Ar ṣifr,CIPHER] 1. the symbol or numeral 0, representing the complete absence of any quantity or magnitude 2. the point, marked 0, from which positive or negative quantities are… …   English World dictionary

  • zero — /zear oh/, n., pl. zeros, zeroes, v., zeroed, zeroing, adj. n. 1. the figure or symbol 0, which in the Arabic notation for numbers stands for the absence of quantity; cipher. 2. the origin of any kind of measurement; line or point from which all… …   Universalium

  • zero — I. noun (plural zeros; also zeroes) Etymology: French or Italian; French zéro, from Italian zero, from Medieval Latin zephirum, from Arabic ṣifr Date: 1598 1. a. the arithmetical symbol 0 or Ø denoting the absence of all magnitude or quantity b.… …   New Collegiate Dictionary

  • zero — n. & v. n. (pl. os) 1 a the figure 0; nought. b no quantity or number; nil. 2 a point on the scale of an instrument from which a positive or negative quantity is reckoned. 3 (attrib.) having a value of zero; no, not any (zero population growth).… …   Useful english dictionary

  • zero — ze•ro [[t]ˈzɪər oʊ[/t]] n. pl. ros, roes, 1) math. the figure or symbol 0, which in the Arabic notation for numbers stands for the absence of quantity; cipher 2) an origin from which values are calibrated, as on a temperature scale 3) math. a… …   From formal English to slang

  • Zero-point field — In quantum field theory, the zero point field is the lowest energy state of a field, i.e. its ground state, which is non zero. [cite book | last = Gribbin | first = John | title = Q is for Quantum An Encyclopedia of Particle Physics | publisher …   Wikipedia

  • zero — 1. The figure 0, indicating the absence of magnitude, or nothing. 2. In thermometry, the point from which the figures on the scale start in one or the other direction; in the Celsius and Réaumur scales, z. indicates the freezing point for… …   Medical dictionary

  • zero — [ zɪərəʊ] cardinal number (plural zeros) the figure 0; nought; nothing. ↘a point on a scale or instrument from which a positive or negative quantity is reckoned. ↘a temperature of 0°C (32°F), marking the freezing point of water. ↘the lowest… …   English new terms dictionary

  • zero — /ˈzɪəroʊ / (say zearroh) noun (plural zeros or zeroes) 1. the figure or symbol 0, which stands for the absence of quantity in the Arabic notation for numbers; a cipher. 2. the origin of any kind of measurement; line or point from which all… …  

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