positive ray

positive ray
a stream of positive ions traveling from a metallic anode to the cathode in a gas-discharge tube. Also called anode ray, canal ray.
[1900-05]

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Universalium. 2010.

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  • positive ray — noun : a stream of positively charged ions moving toward the cathode in a discharge tube * * * Physics. a stream of positive ions traveling from a metallic anode to the cathode in a gas discharge tube. Also called anode ray, canal ray. [1900 05] …   Useful english dictionary

  • positive rays — plural noun Canal rays, a stream of positively electrified particles towards the cathode of a vacuum tube (positive ray analysis the detection of gases, and determination of their molecular weights, by measuring the parabolas produced on a… …   Useful english dictionary

  • positive — adj. & n. adj. 1 formally or explicitly stated; definite, unquestionable (positive proof). 2 (of a person) convinced, confident, or overconfident in his or her opinion (positive that I was not there). 3 a absolute; not relative. b Gram. (of an… …   Useful english dictionary

  • Positive — Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object by… …   The Collaborative International Dictionary of English

  • Positive crystals — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

  • Positive degree — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

  • Positive electricity — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

  • Positive eyepiece — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

  • Positive law — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

  • Positive motion — Positive Pos i*tive, a. [OE. positif, F. positif, L. positivus. See {Position}.] 1. Having a real position, existence, or energy; existing in fact; real; actual; opposed to negative. Positive good. Bacon. [1913 Webster] 2. Derived from an object… …   The Collaborative International Dictionary of English

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