Positive-column



noun, Physics.
1.
the luminous region between the Faraday dark space and the anode glow in a vacuum tube, occurring when the pressure is low.

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    positive convergence n. The inward deviation of the visual axes.

  • Positive-crankcase-ventilation

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  • Positive declination

    positive declination n. See extorsion.

  • Positive-definite

    adjective, Mathematics. 1. (of a quadratic form) positive for all real values of the variables, where the values are not all zero. 2. (of a matrix) displaying the coefficients of a positive definite quadratic form.



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