AskDefine | Define isotonic

Dictionary Definition

isotonic adj
1 (used of solutions) having the same or equal osmotic pressure [syn: isosmotic] [ant: hypertonic, hypotonic]
2 relating to or characterized by the equal intervals of the well-tempered scale; "isotonic tuning"
3 of or involving muscular contraction in which tension is constant while length changes [ant: isometric]
4 of two or more muscles; having equal tension

User Contributed Dictionary



  1. In the context of "of two solutions": having the same osmotic pressure
  2. In the context of "of a medical solution": Having the same concentration of solutes as human blood.
    Use an isotonic saline solution in your neti pot to prevent irritation of your nasal passages.
  3. In the context of "of two muscles": having equal tension

Extensive Definition

The term isotonic may refer to;
isotonic in German: Isoton
isotonic in Low German: Isoton
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