Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

isotonic

play
adjective iso·ton·ic \ˌī-sə-ˈtä-nik\

Definition of isotonic

  1. 1 :  of, relating to, or being muscular contraction in the absence of significant resistance, with marked shortening of muscle fibers, and without great increase in muscle tone — compare isometric

  2. 2 :  isosmotic —used of solutions

iso·ton·i·cal·ly play \-ni-k(ə-)lē\ adverb
iso·to·nic·i·ty play \-tō-ˈni-sə-tē\ noun


Origin of isotonic

International Scientific Vocabulary


First Known Use: 1891


Medical Dictionary

isotonic

play
adjective iso·ton·ic \ˌī-sə-ˈtän-ik\

Medical Definition of isotonic

  1. 1:  of, relating to, or exhibiting equal osmotic pressure <isotonic solutions>—compare hypertonic 2, hypotonic 2

  2. 2:  of, relating to, or being muscular contraction in the absence of significant resistance, with marked shortening of muscle fibers, and without great increase in muscle tone—compare isometric 2

  3. iso·ton·i·cal·ly \-i-k(ə-)lē\play adverb
    iso·to·nic·i·ty \-tō-ˈnis-ət-ē\play noun, plural iso·to·nic·i·ties




Learn More about isotonic

  1. Medical Dictionary: Definition of "isotonic"


Seen and Heard

What made you want to look up isotonic? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 9, 2016

marked by high spirits and laughter

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

spindrift kittly-benders duvet pince-nez
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ