Tension

(ten;-shun) \_tendere, to stretch]. I. The act of stretching; the state of being stretched. 2. In electricity, the power of overcoming resistance. T., Intraocular, the pre ure of the ocular contents upon the sclerotic coat. It may be estimated by means of an instrument called tonometer, or by palpation with the fingers, and is recorded by symbols as follows: Tn = normal tension; T + I,T+ 2, T -f 3 indicate various degrees of increased T., and T — I, T — 2, T — 3 corresponding degrees of decreased T. T. of Gases, the tendency of a gas to expand on account of the mutual repulsion of its molecules. 620