ISOTONIC

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 Dictionary entry overview: What does isotonic mean? 

• ISOTONIC (adjective)
  The adjective ISOTONIC has 4 senses:

1. (used of solutions) having the same or equal osmotic pressure

2. relating to or characterized by the equal intervals of a musical scale

3. of or involving muscular contraction in which tension is constant while length changes

4. of two or more muscles; having equal tension

  Familiarity information: ISOTONIC used as an adjective is uncommon.

 Dictionary entry details 

• ISOTONIC (adjective)

Sense 1

Meaning:

(used of solutions) having the same or equal osmotic pressure

Synonyms:

isosmotic; isotonic

Antonym:

hypertonic ((of a solution) having a higher osmotic pressure than a comparison solution)

hypotonic ((of a solution) having a lower osmotic pressure than a comparison solution)

Sense 2

Meaning:

Relating to or characterized by the equal intervals of a musical scale

Classified under:

Relational adjectives (pertainyms)

Context example:

isotonic tuning

Pertainym:

tone (a musical interval of two semitones)

Sense 3

Meaning:

Of or involving muscular contraction in which tension is constant while length changes

Domain category:

physiology (the branch of the biological sciences dealing with the functioning of organisms)

Antonym:

isometric (of or involving muscular contraction in which tension increases while length remains constant)

Sense 4

Meaning:

Of two or more muscles; having equal tension

Similar:

tense (in or of a state of physical or nervous tension)

Domain category:

physiology (the branch of the biological sciences dealing with the functioning of organisms)

 Context examples 

An isotonic solution containing macrogol 3350 and electrolytes with laxative activity.

(Macrogol 3350-Based Iso-Osmotic Laxative, NCI Thesaurus)

A sterile, non-pyrogenic, isotonic solution of radioactive indium In 111 diethylenetriamine pentaacetate (DTPA).

(Indium In 111 Pentetate, NCI Thesaurus)

A synthetic, nonionic hydroxyethyl derivative of starch used as a plasma expander when prepared in an isotonic solution.

(Hetastarch, NCI Thesaurus)

An injectable, isotonic, nutritional lipid emulsion composed of approximately 80% refined olive oil and 20% refined soybean oil, used for parenteral nutrition.

(Olive Oil/Soya Oil/Egg Lecithin-based Emulsion, NCI Thesaurus)

An isotonic, sterile, absorbable adhesion barrier gel composed of polyethylene oxide and sodium carboxymethylcellulose, with protective activity.

(Absorbable Adhesion Barrier Gel, NCI Thesaurus)