ten·sion /ˈtɛnʧən/ 名詞
1. The act of stretching or straining; the state of being stretched or strained to stiffness; the state of being bent strained; as, the tension of the muscles, tension of the larynx.
2. Fig.: Extreme strain of mind or excitement of feeling; intense effort.
3. The degree of stretching to which a wire, cord, piece of timber, or the like, is strained by drawing it in the direction of its length; strain.
4. Mech. The force by which a part is pulled when forming part of any system in equilibrium or in motion; as, the tension of a srting supporting a weight equals that weight.
5. A device for checking the delivery of the thread in a sewing machine, so as to give the stitch the required degree of tightness.
6. Physics Expansive force; the force with which the particles of a body, as a gas, tend to recede from each other and occupy a larger space; elastic force; elasticity; as, the tension of vapor; the tension of air.
7. Elec. The quality in consequence of which an electric charge tends to discharge itself, as into the air by a spark, or to pass from a body of greater to one of less electrical potential. It varies as the quantity of electricity upon a given area.
Tension brace, or Tension member Engin., a brace or member designed to resist tension, or subjected to tension, in a structure.
Tension rod Engin., an iron rod used as a tension member to strengthen timber or metal framework, roofs, or the like.
n 1: feelings of hostility that are not manifest; "he could sense
her latent hostility to him"; "the diplomats' first
concern was to reduce international tensions" [syn: latent
2: (psychology) a state of mental or emotional strain or
suspense; "he suffered from fatigue and emotional
tension"; "stress is a vasoconstrictor" [syn: tenseness,
3: the physical condition of being stretched or strained; "it
places great tension on the leg muscles"; "he could feel
the tenseness of her body" [syn: tensity, tenseness, tautness]
4: a balance between and interplay of opposing elements or
tendencies (especially in art or literature); "there is a
tension created between narrative time and movie time";
"there is a tension between these approaches to
5: (physics) a stress that produces an elongation of an elastic
physical body; "the direction of maximum tension moves
asymptotically toward the direction of the shear"
6: the action of stretching something tight; "tension holds the
belt in the pulleys"