hypotonic

/ˌhaɪpoʊˈtɑnɪk/
adjective
  1. Having a lower concentration of dissolved substances than another solution, causing water to move into cells.
    • In biology class, we learned that a hypotonic solution makes plant cells swell.
    • The lab technician prepared a hypotonic saline solution for the experiment.
    • If you put a red blood cell in a hypotonic solution, it may burst.
  2. Having reduced muscle tone; floppy or weak.
    • After the stroke, his left arm became hypotonic and hung loosely at his side.
    • Hypotonic muscles can make it difficult to perform everyday tasks like walking.
    • The infant was diagnosed as hypotonic and needed regular physical therapy.
Antonyms
What does "hypotonic" mean? | whatsthatwordmean | whatsthatwordmean