adj ·4 syllables ·Rare ·Advanced level

Definitions

Adjective

1. 1
   Having a greater osmotic pressure than another.
2. 2
   Having a very high muscular tension; spastic.

Adjective

1. 1
   (of a solution) having a higher osmotic pressure than a comparison solution wordnet
2. 2
   (of living tissue) in a state of abnormally high tension wordnet

Antonyms

All antonyms

hypotonicisotonic

Example

More examples

"Hypertonic and hypotonic crystalloids respectively contain more and less electrolytes than the plasma."

Etymology

From hyper- + tonic.

Related phrases

osmotic pressure

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.